system
A chat on subreddit /r/me_irl
human
Funny thing.  I've heard this is part of the reason why guys find it relaxing/enjoyable to shit. This is like my go to awkward factoid.  Alot of guys enjoy sitting and girls wonder why some guys take so long to shit.  I think that was a running joke on tv shows in the 90s, "a man and his throne" kinda thing. But the stimulation sends enough endorphins to make guys go "ahhh."
gpt
Women too sometimes. Not that I would know first hand or anything