The bulldog works as a coach at the Muscle Beach Gym.
The Richie Rich/Scooby-Doo Show
He became annoyed when Shaggy Rogers, Scooby-Doo, and Scrappy-Doo came to the gym and Scrappy boasted that his Uncle Scooby was twice as strong as the bulldog. He played several dirty tricks on Scooby as he was trying to exercise, ending when he put on a fake shark fin in the swimming pool. A real shark from the ocean came in, first enamored by the other shark, and then angry when it realized it was a fake. The shark chased the bulldog out to sea. (Strongman Scooby)