Dr. Jeff Cameron:  These things are like water !
Waiter: They creep up on you .
Dr. Jeff Cameron: Bring me a couple more .
Waiter: But , sir , you have _ four _ and we are only allowed two to a customer .
Dr. Jeff Cameron: Why ?
Waiter: That drink makes a guy talk back to his mother - in - law .
Dr. Jeff Cameron: What about his father - in - law ?
Waiter: I suppose so .
Dr. Jeff Cameron: You 've given me an idea .