At the beginning of the "Seinfeld" episode "The Pie", Jerry (Jerry Seinfeld) tries to feed a bite of apple pie to his date, Audrey (Suzanne Snyder), but she refuses without giving a reason. The refusal to eat something offered by a peer becomes a motif of the episode. Later on, the pair go to a restaurant owned by Audrey's father, but refuses to eat a slice of pizza she offers him. She understands immediately that this small social slight is a form of revenge. Like in all episodes of "Seinfeld," something tiny and incidental is, through a vast network of neuroses, turned into a massively awkward faux pas. 

Later still, George (Jason Alexander) is having dinner with a prospective employer at a restaurant. George notices that a rival of his is in the restaurant's kitchen, and begins to suspect that his food might have been tainted in some way. When his potential employer,...