OSHA

"The Occupational Safety & Health Administration (OSHA) has determined that the maximum safe load capacity on my butt is two persons at one time, unless I install handrails or safety straps."
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=26&t=82520