1992 -- A West Chester, Pa., urologist reported in an issue of Medical Aspects of Human Sexuality last year that a man had checked himself into an emergency room with pain resulting from a swollen and apparently lacerated scrotum. Days after the doctor repaired the patient's condition, the man confided that he had been masturbating by holding his penis against the canvas drive-belt of a piece of machinery at work during his lunch hour when he leaned too close as he approached orgasm and suffered an industrial accident. He then used a heavy-duty stapling gun to close his wound.
