Henry Gibson guest stars as a leprechaun named Tim O'Shanter, whom Endora has installed in the Stephens household to test the strength of Samantha and Darrin's marriage. Ticked off at Sam, Endora instructs Tim to make Darrin's life a living heck. As a result, Darrin is outfitted with a pair of magic shoes which transform him from a go-getting ad man to a lazy lout. Written by Ed Jurist, "If the Shoe Pinches" first aired on March 26, 1970. ~ Hal Erickson, Rovi