Do you feel guilty when you kill insects?

I always feel guilty when I step on snails so I try to avoid it anytime it's wet outside(same with worms.) Ever since I heard read that snails do indeed feel pain and have nervous systems. I just can't step on snails, ants on the other hand. I'll tell those lil guy's they need to leave and if they aren't gone by the time I get home, it's an ant massacre in my house! I've always loved snails though. We did snail races in elementary school and I kept doing them even AFTER the assignment because well, I was a weird kid. I love creatures, big and small.

My hubby will kill bugs, but only if they're in our bedroom invading our space; he usually catches bugs and releases them.