This brings back a great memory for me. One of those times you laugh so hard you cry and then laugh even more because your crying.

Picture it: Large person in middle seat (LPMS) , California surfer dude in aisle seat (CSDAS).

LPMS pulls up arm rest and literally expands so he's taking up about quarter of CSDAS's personal space.

CSDAS is not happy. He goes to put down the arm rest. LPMS says words to effect, I wouldn't do that. CSDAS does it anyway.

LPMS lets out (no polite way of saying it) a lot of gas when the arm rest comes down on his stomache. LPMS lifts up arm rest again.

CSDAS is a little wary now and pulls down arm rest very gently.

LPMS lets out more gas but less than before.

This happens a few more times.

CSDAS gives up and blames "the system".

I'm sorry if this offends some of you, but they were both characters and the situation funny.