I've been on a full flight, in the window seat, sitting on a runway at 95 degrees with a 300 lb'er in the center seat, it ain't pleasant. If they take up two seats, let 'em pay for two seats.
Free Fire Zone
I'm with you Free Fire Zone. I've been in the middle seat flying out of Phoenix in August between "two persons of size". It was the MOST unpleasant flight I have ever had. I confess I am 5'2" and about 100 lbs, but the seats in coach barely fit me! It's insane to put 200-300 lb folks in them! My brother is over 300 lbs and he flies first class on all flights. Claims Alaska has the biggest seats...