Clair says she's seen Theo's friends sneak out of a room while Cliff rambles, something which took place (albeit without Clair) at the end of the season five episode, What He Did for Love.
Clair (to Theo): "You tied sponges to your butts?"
This episode marks the first appearance of "Cliff's Rambling". It became a running gag throughout the series.
Cliff's rambling stories are a highlight of this episode. Some of it is reminiscent of Bill Cosby's stand-up comedy.