Paris Hilton's 21-year-old boyfriend, model River Viiperi, was arrested at XS nightclub in Las Vegas after punching a man in the face after his girlfriend made out with Paris. The victim's injuries were so severe he had to be hospitalized.
The victim told security that he wanted to press charges against River, who was booked for misdemeanor battery, but River was cited and released without ever going to the police station. By the time police showed up Paris knew what the deal was, and bolted out of the building.
The incident is still being investigated by Vegas police.