Originally Posted by samwkchan

That's true, but reality is cruel especially when the flight is full and you must take that flight. When you are on the flight, the pilot has almost full control on regulations. (Of course, he can't force you to eat broccoli if you dislike it.) The affected passenger may be asked to tolerate probably, and ask for compensation in miles or vouchers after your sardine flight.

If you don't want to be squeezed, considering the punctuality and tight schedule, there is 50% chance that the pilot will ask the complaining passenger to leave the plane, but not the passenger of size. It is solely because it is even more troublesome to ask a silent passenger to leave, provided that the only problem is the fat.