A dad is waiting with his shotgun for his daughters' dates to arrive.
The doorbell rings and the father opens the door to the first young man who says "Hi, I'm Eddie. I'm here for Betty. We're going out for spaghetti. Is she ready?" Strange kid but harmless, thinks the dad, and he lets the boy in.
The doorbell rings again. The dad answers the door and the new young man says, "Hi, I'm Joe. I'm here for Flo. We're going to a show. Is she ready to go?" The father lets him in.
The doorbell rings for the third time. When the father opens the door, the date says "Hi, I'm Chuck..." KABLAM!