There are some things that you should absolutely not do when you attend a sporting event. For instance, you shouldn't steal foul balls from little kids. You also shouldn't take your shirt off. And you shouldn't, well, just go check out the list that Bleacher Report put together over here. They've got 25 things you shouldn't do at a game. So the next time you attend a sporting event, you'll know how to act.
[via Bleacher Report]