For the last decade, a man has been coming to a golf course in Norway in the mornings, dropping trou and pooping in the cups.

That sentence should invite a lot of questions.

Stavanger Golf Club has been dealing with the mystery pooper since 2005, and the club's staff is convinced a man is behind the fecal graffiti for a simple reason.

"We know it is a man because the poos are too massive to be from a woman," said groundskeeper Kenneth Tennfjord, who added that the man in question often leaves toilet paper to go along with the turds, according to the Rogalands Avis paper.

The person in question only poops in the cups on weekdays, never showing up on weekends. Presumably, he has better things to do then. The guy apparently used to bike to the parts of the course where he would do his business, with grounds staff noticing wheels marks in the dew, followed by foot prints to the cup.

At one point, the club thought putting flood flights around the mystery pooper's favorite target would stop him. Wrong. The guy just found a way to turn off the lights and poop in the dark.