I don't kill bugs either!
I try to make sure I don't step on ants when I'm out walking on the sidewalk... but I realize this makes one look down instead of up, enjoying the trees.
One things I accidentally kill are mosquitos - when they bite you and you feel it, it's instinct (for me, anyway) to slap that area, which will often result in the mosquito's death.
I definitely don't 'like' bugs (although I think of spiders as helpful, since they'll eat other bugs), but I don't want to kill them. sometimes i will muster enough courage to get a bug to crawl on a piece of paper, and then I'll bring the paper outside and shake or blow the bug off.