Ooooh! All the talk of flying, I completely forgot about this- DF(all 6'8") of him and I were flying from Italy to NYC. It was a rather empty overnight flight and we had four seats between the two of us. Given his leg length, despite the extra seats DF sat on the aisle, extending his legs into in whenever feasible. When we first got on the plane, we had asked the man in the row ahead of us (4 seats, one man) if he wouldn't mind switching, as his had two aisle seats with nothing in front of him. He declined, and we sat as assigned.
45 minutes or so into our 6 hour flight, the man in front of us decided to sleep. He systematically went down his row putting the seat backs down, until he got to the seat right in front of DF, which he tried to put back, but was not able to due to the fact that even with his legs into the aisle, DF's legs literally took up all of the space behind the seat.
Physics were at play now, with the man in front of us pushing back with all his might, jostling the seat and bouncing in it, while DF sat there, his knees getting bumped and bruised, but still not magically disappearing. Finally the man stood up and proceeded to berate DF in Italian (DF speaks none of it, I was laughing too hard at the man calling him things like a goat legged mule head to be very helpful with translations) Finally the flight attendants came over and nicely explained to the man that it was physically impossible for DF to move his legs, and as the man had a row to himself, perhaps he could sit in another seat. The man was having none of this, and it was only when threatened with intervention from several service members on board, did his begrudgingly sit down.
The kicker was that when he lay across the seats, the tips of his toes touched the edge of the seat in front of DF that he so badly wanted to recline...