A married man was having an affair with his secretary. One day, their passions overcame them and they took off for her house, where they made passionate love all afternoon. Exhausted from the wild sex, they fell asleep awakening around 10.00 pm. As the man threw on his clothes, he asked the woman to get some chalk and rub it behind his right ear. Mystified, she nonetheless complied. He slipped into his coat and drove home. Where have you been!" demanded his wife when he entered the house. "Darling, I can't lie to you. I've been having an affair with my secretary, and we've been having sex all afternoon. I fell asleep and didn't wake up until 10.00pm." The wife glanced up at his ear and said, "You lying bastard! You've been up the pub playing darts!!"