A businessman and his secretary, who were overcome by passion, went to his house for an early afternoon quickie.
“Don’t worry”, he assures her, my wife is out of town on a business trip, so there’s no risk of us getting caught.
As one thing leads to another, the secretary reaches into her purse and suddenly gasps, “We have to stop! I forgot to bring birth control!”
“No problem”, the businessman replies, “I’ll just get my wife’s diaphragm”.
After a few minutes of searching, he returns to the bedroom in a fury.
“That witch!” he exclaims. “She took it with her! I always knew she didn’t trust me!”