People who kill innocent bugs like ants, caterpillars etc. for absolutely no good reason.
You f****ng idiot, imagine a 100ft tall giant punching you, breaking all your bones and ultimately pulverizing you in the process. Oh yeah, that little ant you just killed? It had a purpose. It had a life. Just like you. If you don't want to kill a dog or a human, then don't kill an innocent bug, you b***h.
Edit: I don't mean in your house, mosquitoes etc. I only meant outside and the bugs that aren't aggressive.