6. Warren Sapp
Warren Sapp hasn’t exactly been in good standing with the media for the entirety of his NFL career. He now works as a commentator, and still can’t seem to behave himself in public at times. After dining at a sports bar, Warren wrote the words “boys don’t tip” on his receipt. Apparently, he did this because his waiter referred to him and his friends as “boys” during his time at the restaurant (as in, “What can I get you boys to drink?”). Sapp didn’t deny the incident, but restaurant surveillance showed that the waiter came to Sapp’s table more than 20 times in the two hours he and his friends were there. The former athlete didn’t appear bothered or unhappy—until it was time to tip. Looks like Sapp just didn’t want to shell out the cash.