Back in New York I had a Buddhist roommate so devout, she wouldn't even kill mosquitoes. At one point she captured a cockroach--it took her 30 minutes, for chrissakes--and she carried it outside and left it by a trash can "so that it has something to eat."
Meanwhile, I reflexively killed bugs in front of her all the time. Perhaps she'd have preferred I use one of these:
Image credit: JoshuaBoss198
I'm not sure if this is a one-off joke, or an actual product designed by Jeff Goldblum.