Ben Affleck is paying the price for leaving the toilet seat up.

Former Alias star Jennifer Garner, who has been married to Ben since 2005, has started fining her hubby each time his thoughtless behavior leaves her with a wet bum.

A National Enquirer source squeals: “Jennifer is making Ben pay. She is fining Ben $5 every time he leaves the toilet seat up. Jennifer got so irritated and grossed out by his habit. So she made him agree to pay money every time he leaves the seat up!”

“At the rate Ben is going Violet is already well on her way to the class of 2028!”

Ben and Jen also have a two-month-old daughter, Seraphina Rose.