Feeling that Darrin has been rude to her, Endora retaliates with a magic spell that transforms Darrin into a perfect gentleman. Unfortunately, his excessive gallantry arouses suspicion rather than admiration from his friends and associates. Mala Powers, the actress who played Darrin's old girlfriend, Mary Jane, in the fourth-season episode "No Zip in My Zap," is here cast as Adrienne. Scripted by John L. Greene from a story by Arthur Alsberg, "Instant Courtesy" first aired on December 26, 1968. ~ Hal Erickson, Rovi