Shocking moment cops drag elderly ‘doctor’ off an overbooked plane because he refused to get off

 The shocking moment a man is pulled from his plane seat and dragged off the jet – because the airline overbooked the flight was caught on camera.

The disturbing footage shows the man was left bleeding from the mouth after his face was smashed against an arm rest during the  incident which  occurred on a United Airlines flight ,before it left Chicago for Louisville, Kentucky.