You called your own idea creative a handful of times, which I understand since mine usually are; however you neglected to include any circus animals.
FAIL!
Try this: Everyone sneaks in a squirrel and lets them loose at kickoff. Or monkeys, they would work, too. Then, after the game, when Ralph checks in with his cleaning crew to ask them how their day is going like he does every week they can say, "The stadium is full of monkeys, Ralph, and not one has signed a contract extension."
Creative people could even write FIRE JAURON on the Monkey's ass.