It's not wearing people out so much as giving their brains a chance to settle or work on less strenuous problems for a while. If it's something physical you need, apparently the simulation room can do some brain chemistry trickery so they can work out in there without smashing holes in the walls.

Nah, this is just good ol' fashioned party games.

[ It seems she's completely unapologetic for speaking if such frivolous matters while Billy is so focused on the people they're about to let down. ]