John was a salesman's delight when it came to any kind of unusual gimmick - he'd buy anything 'new' or just unusual. His wife Marsha had long ago given up trying to get him to change. One day, John came home with another of his purchases - a robot that John claimed was a lie detector.
It was just about 5:30 that afternoon when Tommy, their 11 year old son, returned home from school. Tommy was over 2 hours late.
'Where have you been? Why are you over 2 hours late getting home?', they asked. 'Several of us went to the library to work on an extra credit project' said Tommy. The Robot walked around the table, and slapped Tommy - knocking him completely out of his chair.
'Son, this robot is a lie detector, now tell us where you went after school.' We went to Bobby's house and watched a movie.' 'What did you watch?' asked Marsha. 'The Ten Commandments'.' Answered Tommy. The Robot went around to Tommy and once again slapped off his chair. With lip quivering, Tommy got up, sat down and said, 'I am sorry I lied. We really watched a tape called Sex Queen.'
'I'm ashamed of you Son,' said John. 'When I was your age, I never lied to my parents.' The robot walked around to John and delivered a roundhouse right that knocked him out of his chair.
Marsha was bent double laughing, almost in tears. 'Boy, did you ever ask for that one! And don't be too angry with Tommy. After all, he is your son!'
The robot then turned and slapped the snot out of her.