This article is part of my FAQs series.
For well over a decade, I have been answering anonymously submitted questions on my Tumblr blog. Over that time, I have noticed many recurring themes, concerns, and misunderstandings.
This series brings together concise, practical responses to the questions I am asked most often, based on real conversations with people at every stage of thinking about veganism.
If you’d like to see more entries in this series, you can find them here.
The Short Answer
Veganism aims to avoid unnecessary harm. Killing animals simply because they are inconvenient or unpleasant is not consistent with this principle. In most situations, humane prevention, deterrence, and capture-and-release methods are available and should be used instead.
In rare cases where there is a serious health risk and no non-lethal alternative, lethal control may be a last resort. It should never be the first response, but it all too often is.
The Detail
Different Kinds of “Pests”
Not all animals we label as “pests” pose the same kind of problem. Some animals present genuine risks to human health and living conditions, such as rats, mites, cockroaches, or mosquitoes. These can spread disease, damage property, and make homes unsafe.
Others are simply unwanted visitors. Spiders, moths, beetles, and many insects usually pose little or no danger, and provide a vital ecological function. They are often present accidentally or temporarily.
Treating all animals in the same way, regardless of risk, leads to unnecessary harm. A spider in the corner is not the same ethical problem as a serious cockroach infestation.
Discomfort Alone Is Not a Moral Justification
Feeling afraid, disgusted, or irritated by an animal does not make harming them morally acceptable. Many people find certain animals unpleasant or scary, and that reaction is understandable. But our emotional response does not determine whether another being deserves to be treated humanely, including when we experience a severe reaction, such as those with phobias.
Vegan ethics asks us to look beyond instinctive reactions and consider whether harm is actually reasonable and necessary. In most everyday situations, it is not.
Prevention Is the Most Humane Approach
The most effective and ethical way to deal with pests is to prevent problems before they begin. This includes:
- Storing food in airtight containers
- Cleaning up food waste promptly
- Sealing cracks and gaps
- Blocking spaces under doors
- Repairing damaged walls or vents
- Keeping bins properly closed
Many infestations happen because these basic measures have been neglected. Prevention protects both humans and animals. For specific species, natural deterrents are often effective. These can include certain scents, plants, repellents, or environmental changes that make spaces less attractive without causing harm.
Capture and Release
When animals have already entered your home, non-lethal removal should be the first option. For small mammals such as mice and rats, humane live traps are widely available and inexpensive. These traps allow animals to be captured without injury and released elsewhere.
If you use them, it is important to:
- Check traps frequently
- Never leave animals trapped for long periods
- Release them gently in a safe outdoor area
Trapped animals can become highly distressed and may injure themselves if left too long. Prompt release, in a suitable location, is essential. For insects and arachnids, humane catchers and containers work well and allow you to relocate animals without touching them.
When Lethal Control May Be Unavoidable
In some situations, non-lethal methods may genuinely fail, and it may be too late for prevention.
Severe infestations, disease-carrying insects, or situations involving serious health risks may leave no realistic alternative. In these cases, lethal control may be used as a last resort. This does not mean it becomes morally “good.” It means it may be morally justified in self-defence when all other reasonable options have been exhausted.
Veganism recognises that some harm is unavoidable in certain circumstances – it does not require people to sacrifice their health or safety. What matters is that killing is never treated as convenient, casual, or preferable to alternatives.
Practical Ethics and Real-World Limits
All ethical systems must be workable in real life, or they are not useful. Expecting people to tolerate dangerous infestations indefinitely is unrealistic and unfair. Moral principles that ignore practical realities eventually become impossible to follow.
Veganism therefore focuses on avoiding unnecessary harm, not all harm under all conditions. The key question is always: “Is there a reasonable way to solve this without killing?”
In most cases, the answer is yes, even it requires more time and effort to solve the same problem.
Applying Vegan Ethics Consistently
It is easy to care about animals we find cute or familiar, but it is harder to extend that concern to animals we fear or dislike. I love most animals, but I can’t stand wasps – that doesn’t mean I get to crush them when they’re hovering around my strawberries.
An ethically consistent framework must be applied in all cases, to all applicable beings, regardless of how we personalyl feel about them. Phobias can be debilitating and discomfort can be severe in some cases, but that alone does not justify ending the life of another creature.
Rats, mice, insects, and spiders are not morally worthless because they are small or inconvenient. They are living beings with their own interests and lives.
If we claim to care about animals, that concern should not stop at our doorstep. Responding thoughtfully, patiently, and humanely reflects the core values of veganism far more than reacting violently out of fear or disgust.
Suggested Reading
- Peter-Godfrey Smith – Other Minds. A fascinating exploration of the development of other minds, and how radically different the brains of some animals are to our own.
- Marc Bekoff – Rewilding Our Hearts. On developing empathy and ethical relationships with other species.
- Jeffrey Lockwood – The Infested Mind. Examines human attitudes toward insects and “pest” species.
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