Wife comes home late at night and quietly opens the door to her Bedroom.
From under the blanket she sees four legs instead of two.
She reaches for a Baseball Bat and starts hitting the blanket as hard as she can. Once she's done, she goes to the kitchen to have a drink.
As she enters, she sees her husband there, reading a magazine.
"Hi Darling", he says, "Your parents have come to visit us, so l let them stay in our bedroom. Hope you said Hello to them.."