My brother had been having trouble snoring and his doctor recommended his going to a sleep clinic. As he was completing the paperwork with the doctor's assistant, she asked, "Have you remarried?" My brother answered, "No, why do you ask?" She responded, "I just wondered who was hearing you snoring?"
She immediately realized she had committed a faux pas by asking such a personal question. She began apologizing profusely and my brother laughed and told her that if she didn't work out in that job she could always become a private detective.