Cursed Diamond Ring

At a busy restaurant, Harold surprises his sweetheart with an engagement ring made from a fragment of the Hope Diamond, cheerfully explaining the famous curse attached to the stone. She insists she isn't superstitious, but from the moment the too-tight ring is forced onto her finger, the evening falls apart: a back gives out, fingers get stepped on, a purse refuses to open, hot food spills onto nearby diners and scalding coffee lands in Harold's lap. When Harold finally insists on returning the jinxed ring, the chaos spills across the dining room and ends with a waiter's shish kebab skewer jabbing Harold.

Tim Conway appears here as a guest star in the show's first season; he remained a frequent guest until joining the regular cast in 1975.