People who walk slowly. Especially in groups where you can't simply walk past them. I'm pretty tall and tend to walk fast so when people are in my way it gets really annoying
And willfully ignorant people.
I can't stand when people bite there nails or are extremly late like a hour and don't even call
Attitudes, cranky people, & people who act like they are the only ones who matter.
My main one is people who are always late!