I mostly try not to kill bugs.  When there's a bug in my house, I try to capture it and put it outside.  It ain't much, but it's honest work.  It's not that I'm a genuinely good or kind person, I just try not to kill things if I can avoid it.  I rescued an earwig the other day.  A giant yellowjacket the day before that.  If I find a spider, depending on its size and creepiness, I'll just leave it there. 

But if I find a mosquito in my house, I will fucking murder that thing in a heartbeat and then spit on its stupid corpse.  Mosquitos are vile, worthless beings whose sole addition to the universe is spreading disease.  Fuck them.  I'd kill a million mosquitoes if I had the chance.  A billion.