TMZ recently posted this video of Mark and Tiffany going at it outside the Playhouse nightclub in LA. Apparently Tiffany and Mark had a deal: She sold her dangerous scooter, and return he promised to quit smoking. The problem? Mark smoked.
The fight starts off with Tiffany berating Mark for not telling her he slipped up and smoked, and devolves into general name calling. "You're such a dick when you're drunk!" Tiffany screams.
According to TMZ, the pair was "hammered" during the fight (which seems very true based on the video), and they still went home together at the end of the night.