When a woman wipes back to front to expose her genitals to fecal matter, so when a man goes down expecting a fish fillet he’ll only to come up with a sloppy joe.
When a lady is formally sitting with legs reclined and proceeds to spill a drink in her lap causing the necessary squeezing of her legs to prevent penetration of liquids to the seating surface beneath.
I almost spilled my wine on the couch but my vagina pool saved the day.