A man goes to the doctor and has to wait while the receptionist, who looks like a bulldog, finishes a personal phonecall. He tuts and harrumphs and glares at her till she hangs up. "How can I help you?" she asks coldly. "I'm here for my 10 o'clock appointment," the man said. Thinking she'll get her own back for his impatience, the receptionist said loudly, "Oh tha's right, Mr Smith, you're here to see doctor about your IMPOTENCE problem, aren't you?" Everyone in the waiting room turned to stare. The man drew himself to his full height and said, "No, actually I'm here about a sex change, but I don't want to see the same doctor who did yours!"