Gentleman pays his extra money for emergency exit seat.
2 days before flight gentleman badly injures leg and is no longer able bodied.
Gentleman presents for flight and boards aircraft.
Gentleman is noticed to be hobbling down toward seat and told "Sorry, no seat for you!".
Gentleman kicks up mega fuss "I paid for seat! Stuff you I ain't moving".
Gentleman is shown error in his ways for what he has said and still refuses or demands on the spot refund, which isn't immediately available.
Gentleman locked up for Air-rage.
(Ok, I'm reaching a little, but this really p*sses me off. The emergency exit seats should be allocated on check in to able bodied pax!)