What's the biggest animal you'd kill?

Man, it was my job.
The Why's:
Bear because I like to hunt and eat what I hunt North American Game that is.

Interesting question which I've given a few minutes of thought to. For me, where I draw the line is when it comes to invasiveness of the species in question. Another human being is on stable ground with me as long as that human doesn't decide to become invasive to me where my survival is in question.

In my tomato garden, where I draw the line with insects and crawling predators is when their presence becomes invasive to the crop I am growing for my own survival. If they want to live among my tomato plants in peace, that is fine with me. But when they decide to annex my garden and call it their own, that's where I draw the line where my nutrition is now being challenged by the nutritional demands of a crawling garden predator.

I could kill a rat....anything larger would have to be self-defense or defense of someone else.

I draw the line at whether something is a "pest" (bugs, vermin) or rabid/vicious (which I could do in defense of myself or someone else).

No i dont think so

A roach

Rat.
Dont think I could kill an animal for food.

But gad dang they’re delicious… 🤓