Mischa Barton was supposed to receive $30,000 to host the grand opening of the CatHouse Loungerie in Vegas, but the plans fell through when she was arrested for DUI last week. But rather than being pissed about the canceled appearance, the club owners were actually happy that Meesh was a no-show. Page Six says

The 21-year-old actress’ handlers were “difficult . . . They wanted a bigger jet [sent]. Mischa wanted to bring her dogs.” Another spy said that Barton… didn’t like the scantily clad model on the invite: “[Her reps] wanted the invitation redone because they thought it was too risque for her image.” Barton even had the nerve to have Paris and Nicky Hilton banned from the bash. “They were blacklisted. Mischa’s team didn’t want her to be associated with the party-girl scene,” a source said.

Irony, is that you? Avoiding Paris Hilton is good and all, but I’m pretty sure nothing says “party-girl scene” like getting a DUI. Her handlers maybe should mention that to her next time. Well, at least her arrest wasn’t a total disaster — it seems to have rekindled the interest of former flame Cisco “Swing Low Sweet Chariot” Adler. Page Six adds

Mischa’s ex still has a thing for her. [Cisco] told the likes of Danny Masterson at the Friday opening of nightclub Home in St. Louis that he felt for [Mischa] after she was arrested for DUI the day before in Hollywood. “He went around telling everyone that she looked so hot in her mug shot,” said a spy.

If he thinks her mugshot’s hot, then he should check out “Faces of Meth” and “STD’s and You (NSFW).” There’s enough spank material there to last for weeks. And don’t forget about the bus station! I’m sure the Hoeboken Greyhound depot is chock-full of lovelies with sexy mugshots.

Mischa in the January issue of Arena magazine: