I am banned from the local bar because I worked in the restaurant and was fired for speaking my mind when I shouldn't have. The next time I went in the bar to meet a friend I was told that the owner didn't want me in there and to leave. Good times!
I've been kicked out of bars when the people I was with became too rowdy. I have one friend who never knows when to quit. She then gets loud and will pick a fight with just about anyone (including her own friends when we try to tell her that she's had enough). Technically, I personally have never been the reason we were asked to leave, but was guilty by association. I would have left anyway if she was kicked out; I wouldn't let my friend take the heat by herself.
got kicked out of a concert. my bf (at the time) was causing problems... I wasn't doing anything, but they figured out that I was drunk and underage.
At the time I thought it was the end of the world, but in retrospect, that's one time out of a lot that I drank underage. And there's a lot worse consequences to that than getting kicked out of a concert. No cops or parents got involved.