At my local airport I have long wondered why having put us to the trouble of taking our jackets and shoes off, that they don't then weigh us.
This guessing lark based on how thin we all were when we were poor and ate our greens isn't exactly a 'professional' way to weigh and balance an aircraft, is it?
I go over 220lbs, all in reasonable proportions you understand

, but the other day I saw a guy who must've bust 350lbs shuffling from one plate of meat to the other in the Priority queue ahead of me. I studied his ar*e in the interests of science and wondered what seat would actually accommodate it ...
Turns out he could still squeeze it into a standard aisle seat and then rest his chin and forearms on what didn't fit between the arms of the seat! Actually, I now wonder if he was cheating and sitting on one cheek with the one or both seat arms folded up

... he did look perched rather precariously ... Nah, probably there's a nack to it ... sit down, spill out,
then put the seat arms down
I pray to God I don't come back in the next life as a low-cost seat cushion