S6·E4 Grand Opening

In order to pay Shirley back some of the money she owes her, Laverne agrees to be the target in Sonny's knife throwing act at Cowboy Bill's grand opening. When Sonny breaks his arm and is unable to do the act, Shirley takes over throwing the knives at Laverne, which makes Laverne extremely nervous since she knows that Shirley is already upset with her.