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In their efforts to earn 20 dollars in order to attend a cocktail party, the girls agree to be human guinea pigs for a team of behavioral science researchers. As a result, Laverne (Penny Marshall) is deprived of sleep for a lengthy period of time, while Shirley (Cindy Williams) is forced to eat dirt. This is a reworking (with the same sight-gag punch line) of a 1967 episode of Hey, Landlord, an obscure sitcom which, like Laverne & Shirley, was produced by Garry Marshall (and featured Richard Dreyfuss and Rob Reiner in bit roles).