Comment: I agree with the three posters who preceded me.  The passenger had every right to be angry and resistant.  He is a doctor who had to get to his patients that morning.  The blame lies totally with United that overbooked the flight.  There is no justification for overbooking when no-shows can't get refunds and forfeit the price of airline tickets.  So they want to increase their profit margin at the expense of passengers.  I will not fly with United again either.  They are also considering to assign seats to passengers on economy flights which could separate couples and families and even charge for small bags that can fit in overhead bins.  Time to boycott United Airlines.