We've spent enough time working restaurant jobs and slogging through part-time drudgery to truly appreciate any baller who knows how to tip big. And in celebrity circles, a huge gratuity (made public) is a surefire path to good PR and image rehabilitation. Yesterday, we learned that John Travolta wasn't too shabby with a tip at a fortuitously timed dinner at Mr. Chow in New York. So today, we present some huge tipping moments that might make you think, however, briefly, that the celebrities who left them aren't such bad people after all — even notorious ne'er-do-wells such as Naomi Campbell and Russell Crowe. Check it out, straight ahead.