> where do you work that requires ethics reviews on roaches?

A university.

> and where is the line for where it's considered cruel or not?

I don't know. I never needed ethical committee approval and was never part of it and never asked this particular question.

> tbh i have 0 issues killing bugs.

I'd bet the same about the ethical committee members.

> do you not believe in pest control?

Sure I do believe!

ok fair answers but if you "believe they deserve humane treatment" how do you square that with pest control? is laser burning less humane than poisoning (status quo)? also it is definitely more humane for the humans (like no worries about small children licking a poisoned floorboard).

I definitely didn't express myself well. What I really mean is: if you're doing scientific experiments with animals, I think they deserve as little pain as possible. I also must say I don't have much sympathy for cockroaches but playing with them like toys while inflicting pain is animal cruelty.

About pest control... well, I don't really care that much about roaches; but I'd do really care if they were, for example, dogs. So, the fact that I don't care that much doesn't means it is not ethically questionable.

If anyone has a good simple idea to develop pesticides which minimize suffering, I wouldn't be opposed to it.