Former person on board of former company was a really, really big guy.

Fairly fit person was flying with him to West Coast. After getting crushed for an hour or two, they had a stopover.

Guy gets a new seat assignment. Much relief. Airplane rides can be a pain even without getting smashed into the window.

Alas, board member learns (somehow) of seat change and changes *his* seat also.

Fairly fit person manages to survive being mushed to a pulp, but he probably still tells the story (with some venemous animosity) to this day.