Tongue Twister

第 1 季，第 4 集: While Courtney and Tiny Tina are away at the vet for a check up, Mr. D tricks Mo into doing something. He learns that playing tricks on people is not a good thing to do. Also, Mr. D finds out that telling the truth is much better than making excuses. Courtney shares a funny tale about ghosts and Strawberry-Apple-Rhubarb pie.