[chris_wot]

Gaining consent is voluntary euthanasia. You can have non-voluntary euthanasia. However, you are correct that this isn’t euthanasia but for a different reason - you euthanise something to put it out of unbearable suffering.

This is extermination, not euthanasia.

[jgwil2]

It's pretty common to refer to destroying an aggressive dog, for example, as euthanasia. This is an analogous situation, particularly given that, as pointed out elsewhere, honeybees are domesticated animals. I think this could fall under euthanasia for behavioral problems.

[chris_wot]

I think that's a mistake in terminology. The dog is not suffering, others are suffering. Normally when I hear reports of dogs being killed due to aggression, the word I hear is "killed" or "destroyed".

I think it does actually matter. Killing because of aggressive behaviour is execution, not euthanasia.