Cockroaches are nasty. I take them out with no mercy, and especially if they're large. Everything about them is really just not pleasant (has anyone seen it when the really big ones kinda lift themselves up on their legs and run around really fast?). Spiders I'm pretty ok with, I get quite a few redbacks around the place so I obviously kill them, but other types are fine to leave around, 'specially because they get rid of mosquitos and flies.

I also hate mice, I have to lay down poison and traps most of the year, they really annoy me cause if they ever get into the house then they start messing with my cereal boxes and other stuff that's in the pantry.