You're not the only one taking advantage of the final weeks of summer -- Paris Hilton had a BBQ at her house this weekend. But the celebutante wasn't about to get grease under her perfectly manicured nails -- she had In-N-Out cater the event, the New York Daily News reports. But while the beverage deliveryman was allowed to bring Paris' order to the front door (where the paparazzi was waiting), the In-N-Out truck was instructed to drive to the back of Paris' place, an insider says. Sneaky sneaky! Oh well, we're sure Macy Gray, Brandon Davis, Scott Speedman, and Eliza Dushku (what a random assortment of guests!) didn't mind -- In-N-Out is pretty tasty.