Mr. Hoofit came into Mopatop's Shop in the episode "Dancin' in the Shop" to sell some dances. He had a hard time selling dances to Mopatop and Puppyduck since they could not make up their mind and wanted to see the dances again and again.
It was not until Moosey Mouse put one of the mouse family's favorite dances in the mix that Mopatop and Puppyduck were convinced. They ordered the entire collection but wanted to see them all again. Luckily for Mr. Hoofit, the big clock rang, making it time to close the shop.