Audio clip:

Video has surfaced of a passenger literally being dragged off a United flight! No, he wasn't wearing yoga pants ... but the flight was overbooked and he was "randomly selected" as the paying customer who had to give up their seat. The unidentified passenger protested and was eventually forcibly removed by security.

The video is disturbing:

Experts say the airline should brace itself for a lawsuit! Should United have to pay up?

UPDATE Is this United Airlines' "new ad"? ...