I hate big trucks. Especially the ones that have douchbags that think it is tight to throw glass beer bottles at you.
I hate walking into my LBS where all these really cool guys work, but having that one older employee look at me like i'm a ****ing waste of life for riding my bike in it's current set-up.
I hate glass on the road.
I hate **** talking girls on the road that make me feel bad about riding.
I HATE, HATE, HATE spitters. When someone comes flying up and spits on you, it is the worst feeling.