I've never been banned from any store, nor do I know anyone who has been banned. I can imagine a few things that would probably get a person banned (repeated disturbances in the store, tantrums, bothering other customers, use of stink bombs, etc...) but I definitely don't want to be banned myself nor do I have any reason to want to cause a problem for the stores. (They carry games, I desire games, they sell me games, they get money and i get games. It's a win-win situation. Why screw that up?) I also do not encourage others to perform actions that would get them banned either.