A lady complained to the builder of the house and told him that whenever a train passes by in the nearby station, the house shook and that day she almost feel off the bed. The builder thought that she was exaggerating things and went to her house to find out.

The train was due in a few minutes and she asked the builder to lie on the bed to experience it. Just then the door opened and her boxing husband entered the room to see a man on the bed.

He asked his wife: "What is the meaning of this? What is this man doing in the bed with you in the room?"

His wife told him: "Would you believe he is waiting for a train?"