Bad Celebrity Tippers [VIDEO]

Sounds like George Costanza has got nothing on Rachael Ray.

In George's defense, he is a fictional Seinfeld character who was notoriously cheap -- as in grabbing a single dollar back from the tip jar. Remember that episode?

Rachael Ray is non-fictional and, apparently, "non-generous" as well when it comes to tipping.

Also on the list? Bill Cosby and several others...check out the rest.