I was explaining the idea of being vegan to one of my friends and at the end of discussion I said “so we don’t harm any intelligent living thing which we are aware of“ so if we step on an ant which we do not see it doesn’t matter, but if we noticed that there we won’t harm it.

He asked an interesting question and now I want to ask you guys

Are vegans allowed to kill a mouse or beetle in their house? Why is that?

If we kill we are aware of killing something and it’s the opposite of the whole idea of veganism. But if we don’t I think it’s not that hygienic.

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    I assume you meant mouse, instead of moss? Also, in addition to what Erica said, there isn't really such a thing as "vegans being allowed this and not being allowed that". You get a specific core definition of veganism (not consuming animal products), but everything else is a grey area. For many, veganism is an ethical stance and they will have a different opinion on these matters than someone who is vegan for the environment or for their health. Lastly, there are ways of keeping your house pest-free that do not involve killing the animal so in most cases there is that option. Apr 9, 2019 at 23:49
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    Side note: For most vegans, the relevant trait is sentience, not intelligence. If it were intelligence, it would be justified to kill animals/humans that aren’t (as) intelligent (e.g., because of a mental disability).
    – unor
    Apr 12, 2019 at 20:26

5 Answers 5


Short answer: avoid it, unless you can't. Safety/health matters more than trying to be perfect. Be compassionate.

Longer answer:

Disclaimer: I'm a beginner flexitarian, approaching veganism, the views are my own.

My approach is:

  • Avoid the situation (killing the beetle) if you can. Ex: put mosquito nets at your door at home
  • If the situation could not be avoided, avoid to kill the animal if it doesn't endanger you/your health/what's necessary for you to live. Ex: take the beetle outside
  • Lastly, once you exhausted the different options (think hard) or are to act quickly in order to survive, kill it. Ex: imminent danger (boar), no escape options.

The bottom line is: try to be compassionate and consider the other living organism, but don't endanger yourself. If you can be clever about it and avoid the situation, do it.

And yes, as @Alexander Rossa puts it: there is no "allowed/not allowed" - you are a sentient person, kind enough to think about veganism - the limit is yours to define


You are right that keeping the mouse inside is not hygienic: they poop everywhere, almost continually. As mentionned in comments, there are "different approaches for different vegans" (@Erica). Vegans and other people are not "allowed" this or that, they decide for themselves. Instead of asking if vegans are allowed to do this, you should ask:

Do I allow myself to kill a mouse in my house?

Veganism should be cruelty free, not harming animals as much as possible. For exemple you could kick a dog that attacks you even if you are vegan, but you wouldn't be resentful and hurt it more than necessary.

You should try to find what is your ethical standpoint about this mouse. See this quote from another question on another stackexchange site, it might resonate with you :

First is the truth that being a nuisance is a far lesser evil than murder in cold-blood... the mouse has the moral higher ground over the mouse-trapper.

Second is the truth that you don't want to be murdered yourself; knowing this, how can you contemplate it for a fellow being?

source: https://buddhism.stackexchange.com/questions/10465/how-not-to-kill-the-mouse-in-my-house

A mouse might enter a house in search of: heat, dryness, food, comfort.

If you decide that you don't allow yourself to kill the mouse:

There are easy cruelty-free ways to get rid of a mouse or a beetle. For an insect, simply pick it up and put it outside. For a mouse you will need a harmless trap that locks her in a box, and then bring it out to release in a forest many kilometers away from your home. I did that myself, caught 2 mice and released them. Didn't get any new ones since. If they would come back I should take interest in where are they entering from and make sure to close these holes. Killing or putting poison around the house doesn't really address the source of the problem and is a bit "overkill" for me, I suspect people just get satisfaction from doing violence to a creature that annoys or scares them greatly.

Knowing that the alternative is possible, then how can you justify killing it when it's not absolutely necessary ?

Veganism is about respecting live animals and their right to live a free life. And showing compassion to them. Putting yourself in the shoes of the mouse. It can be more than just deciding what you put in your plate.

Do what you can, do the best that you can.

By the way, avoid touching the mouse with your hands, they will bite you if cornered, and they can indeed carry some disease or infectious something. If you trap a live mouse in a box, you will have the chance to observe her alive from a short distance, they have beautiful, big black eyes and they are fluffy, quite cute things they are. I think rats might be more ugly and grumpy but they are still decent fellas. :p

Notes on insects:

Insects multiply and coexist in very large numbers, and they are eaten/killed/expended very fast in very large numbers too. They might (speculation) not be very sentient either, some vegans might decide they are allowed to eat insect protein. So, for some, to slap a mosquito that is biting you, or a fly that entered your house doesn't make them feel bad at all, insect life is short. Poisoning a whole area or ecosystem is different. That being said, killing the mosquito while it is draining you might not be the best way to prevent a scratchy bump, I heard it's actually better to let it finish and go away.

Humans have a good chance to drive mammals, birds or fishes to extinction, but insects, not so easily.

Ants in the house might be an interesting topic too. In this case, killing the ants themselves will do almost nothing, more will come. The real trick is to stop leaving foods and crumbs in the house. Or if you want to keep your crumbs, then you can have a house full of crumbs and ant-poison, here we see again that killing is not the efficient or smart way to resolve.

A few spiders or silverfishes in a house shouldn't be a concern, you can let them live.

About killing and violence:

Killing and violence is usually fear-driven or panic-driven: punch it until it doesn't move. You can imagine someone wanting to "burn their whole house" because of scary ants or scary mice. Or when someone sees a spider and screams "Kill it, kill it !!!" That's because violence, on the short term, gets sh*t done, solves the scary problem, immediatly, for sure. At leat it's the impression that it gives. But like we see with killing the ants on the floor, it only gives the satisfaction or seeing one problem (one ant) getting instantly solved, while the underlying issue is still present.

Also, to be afraid of something so much smaller than you, that doesn't want to harm you at all, is a bit pathetic and shows how much humans live in a disinfected bubble of illusions and reassuring beliefs about hygiene and germs. Instead of admitting they are scared, people will say that the animals are "disgusting" or "dirty" or "carry diseases", and might label them with negative-connotation words like "pest". Oh it's a pest, therefore it's normalized to kill it, pests should be killed. Same happens with some plants that are labeled maybe "weeds". In french they would be "mauvaises herbes", literally bad herbs, just to justify their extermination with the choice of words.

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    Thanks a lot for your complete answer on the subject. Apr 10, 2019 at 20:43

Law of the Jungle

We live in a clearing in the southern Sri Lanka Jungle. From time to time we have rats.

Normally when they become a nuisance, my wife puts out a cage trap and we catch it.

In the morning we then get the neighbor kid to peddle the rat a few miles away and let it go in the jungle.

Quite often the bait is gone in the morning and there is no rat.

Last night my wife heard the trap snap shut. Later there there was a bit of a commotion. Lots of squeaking that sounded sorta like "save me, save me". My wife grabbed her camera and started filming.

There was a big Toddy Cat, (Civet), trying to open the cage.

Sri Lankan Civet Cat Sri Lankan Civet Cat

We don't really mind if our Toddy Cats eat our rats, it is a Jungle out there. We just don't want to be a party to it. It sort of worries me all the times we found the cage empty.


Great answers above!

On the subject of mouse tactics, I'd add that besides stopping up the holes where the mice get in if you can, the thing that makes the big difference is to make sure not to leave any food where they can reach it. Be thorough. If you know they can get into one of your cupboards, use that cupboard only for tinned food, or store things in plastic boxes with tight-fitting lids. They get the idea before long and stop bothering to venture into the kitchen. Only thing that works when we get mice. (I'm not sure that killing them would even work, as ours mostly come in from outdoors!)

A few drops of peppermint oil, put on work surfaces or wherever they've been going that you want them to stop going, also deters them to some extent. But if there's food up there that won't always stop them.


Veganism and vegetarianism are loosely defined concepts, not doctrines.

People choose to be vegan or vegetarian for a wide range of reasons, including:

  1. Health
  2. Food safety (related to Health, but a bit different)
  3. Ethics/morals
  4. Environmental impact (often related to ethics/morals)
  5. Economics
  6. Taste

So, do what fits your values, and call yourself whatever you like! But remember that most actions have consequences (short-term and/or long-term), so choose wisely. And if your choices aren't working for you or others, consider changing them!

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