Quote from Barney in The Fortress
Man: Oh, is this part of a security system?
Barney: Sort of. It's connected to the welcome mat. You see... Let's say the young lady you're bringing home is dressed for winter. Under those layers, an unwelcome surprise could await you. The scale with body fat calculator I've hidden under the welcome mat makes sure you never have banger's remorse. The Heavy Set Go by Stinson, patent pending. 'Cause there's only one kind of chubby you want in the bedroom. Am I right, people? [laughs] This guy knows what I'm talking about.