roosterroaches - they're so gross and I had a bad experience with one before...
Wasps - they look so scary, and I never know when they are going to attack for no reason.
Mosquitoes - those damn things are so annoying.
Nats - they're like mini-mosquitoes, but its really funny when you see them floating above people's heads in the evening sun.
Locus - those damned things ruined my summer days. :(
My sister - need I say?