I found this list at Hope. Dies. Last.
Something I hate about myself is I am easily irritated. Super easily. Way, way, wayyyyy too easily. I even irritate myself. As I typed the last sentence someone did a half-yawn-half-gasp next to me and that irritated me too. I become irritated when people refuse to cooperate, when I can't do something well, when I don't understand something. I become irritated when someone else can not understand something. I spend a lot of time feeling irritated and it irritates me that I don't know how to overcome it.
So there, something I hate about myself: I'm irritable.