Thats what you get for saying "Fuck" 6 times in a Gamestop store. I'd say it was deserved to be honest. How do you think a big supermarket chain like Wal-mart would like it if you walked into their store and yelled "FUCK" several times repreatedly? I think that would get you a store ban.
" @Jeknod said:" You were a jerk; you were kicked out. "How was I a jerk, I was not being aggressive at all I wasn't cussing at him or calling him vulgar names "
On the other hand, telling you to leave over that in the first place was a dick move. Plus "fuck" isn't really such a foul mouthed curse word nowadays, considering the wide use of it and other much worse curse words/insults on Xbox Live multiplayer voice chat.