Late 80's flying to Lady Elliot Isl, where every thing was weighed (600 m strip high water mark to high water mark) the then Chief Pilot was quite surprised when he added the pax weights for the year (adult) and divided by the number of adult pax, and came up with .....
77.
A good laugh was watching a person of ample proportions, usually the female gender, argue why they shouldn't have to get onto the scales. Then huff and puff, as they slipped off their thongs (foot ones) to reduce the reading!