Incident in which you take a dump, and the toilet splashes you back in perineum. This is different from a regular
bidet in that it's the toilet
water that's splashing you, not a directed tap.
As a rule, this nearly never happens at home, and it frequently happens when you're forced to use a stall with overtly nasty waters or after you've
already urinated.
person one: I'm a
little worried. I had to use the portajohn at the airshow, and it gave me a spontaneous
bidet.
Friend: Dude, you need to see your
doctor.