Hummingbird. These buggers are fast, and if you get too close to the feeder, they dive bomb your head. Careful.
Bees. Once I stepped on a bee. That wasn't fun. Another time I was opening a door and a bee stung my ring finger. That wasn't fun either. I still like them, though.
My cousins and I used to have a grasshopper catching contest. They always won because I thought they were gross and did cartwheels instead.