Fred: I told Wilma how she can economize and save 500 bucks a year on the grocery bill alone.
Barney: Oh, you gonna cut out your midnight raids on the icebox?
Fred: No, I'm gonna cancel the big food disposal unit Wilma was expecting-- her mother. She eats like a 7-year locust, only she comes here every 7 months.
Barney: You're lucky, Fred. Look at poor Harvey Boxite. He's been married 12 years and his mother-in-law only visited him once.
Fred: What's so bad about that?
Barney: She came the day after they was married, and never left.