When George Clooney was staying in the apartment of Richard Kind, he noticed a litter box for Richard’s cat next to the toilet. Each day he scooped up the cat’s droppings and flushed them down the toilet. Then Richard mentioned that he was worried about his cat because he thought it hadn’t been defecating in several days.

That’s when George Clooney decided to prank his friend by defecating in the litter box for his friend to find it. Although Richard didn’t find Clooney’s feces in the litter box humorous, it was an unusual prank to play on a friend involving a cat.

To learn more about George Clooney’s prank, click here.