Episode Title:
Impractical Joker.
Episode Description:
Barney gets even with Fred because of his practical jokes he's been pulling on him from time after time, so Barney pretends to be a counterfeiter in his basement with the money he won in a slogan contest and Fred thinks the money is fake and will land him in jail. Meanwhile, Wilma and Betty try to cure the both of them of their practical joking.
