A man flying on US Airways flight 901 was forced to stand for over 7 hours. The flight from Anchorage to Philadelphia did not have a seat for him to sit in.
The reason was that a morbidly obese man was sat next to him and was taking up half his seat. You can read the full article here.
Apparently US Airways offered him a $200 voucher for his trouble. I think that is a little off the mark in terms of compensation, don’t you?