For the people who just need some off time in life

Shhh, let me go to my quiet corner and sob

Crying cubicle

I think I would use this far more than I like

Well, I can imagine other things people could do there...

Time out stall

Isn't it a stall used for changing clothes?

Still need somewhere to sit

They could have left that space joined to the adjacent stall and had a larger more useful stall...more usefull for someone to change clothes or maneuver a wheelchair.