A 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.
 Leaving the covered bodies groaning, 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 I let them stay in our bedroom. 
 
Did you say "hello"?