A salesman was testifying in his divorce trial......

A salesman was testifying in his divorce trial against his wife.
"Please describe," said his attorney, "the incident that first caused
you to entertain suspicions as to your wife's fidelity." "Well, I'm
pretty much on the road all week," the man testified. "So naturally
when I am home, I'm attentive to the wife." "One Sunday morning," he
continued, "we were in the midst of heavy love-making when the old
lady in the apartment next door pounded on the wall and yelled, 'Can't
you at least stop all that racket on the weekends'"