Quote from Sam in Cliffie's Big Score
Cliff: Well, I seem to have one of those situations again. You know, two dollies lined up for the same evening. Sam: Oh, well, does this have to do with Diane, Carla and that postman thing? Cliff: Yeah. Sam: Well, fair's fair. Who said yes first? Cliff: Carla. Sam: Well, you just have to tell Diane you can't go with her. Make up some excuse. Tell her that your girl cousin from Michigan is in town just for the day and that you gotta take her. No, wait a minute. Wait a minute. No, she's already heard that one.