And let's not forget the supreme mental energy required on their part when they set up a double life (otherwise known as tripod) existence. That takes some doing.

Me 55, W 50
D 8
M 20
T 27
MIL w/ us
BD 01/02/17
workplace A (12/09/16, EA -> PA)
OM senior manager, long term W, child 14
now: limbo (my choice)

"Don't care what you may do, we got that attitude!" - Bad Brains