I once heard about a little Buddhist who felt bad about killing the microbes on the apples he ate. Seems wacky but really it’s a very pleasant wacky. I try not to kill any insects either, unless they want to steal my blood. In that case I rip them apart and use one liners inspired by films from the 80s on them. Like, “Sorry, I was all out of bubblegum.” Or, “Son of a mosquito bitch must pay!” I’m sure nobody has given them that much attention before so I don’t feel guilty.