A week later, the house keeper told John that ever since his mother's visit a silver gravy ladle has been missing. John sent his mother a note which said, "Mom, I'm not saying you did take the gravy ladle, and I'm not saying you didn't, but the fact remains one has been missing since you were here".
A few days later he receives a note from his mother. "John: I'm not saying you sleep with your house keeper, nor am I saying you're not. But the fact remains that if she were sleeping in her own bed she would have found the gravy ladle by now. Love, Mom".