A man turned up at his doctor's surgery with weals and lacerations all across his legs, arms and back. When asked how he had received them, he replied that he had picked up a prostitute with whom he had wanted to engage in S&M in the back of his vehicle.

Having no 'instruments of pleasure' to hand he had removed the radio receiver from the roof and she proceeded to flaggellate him with it.

The doctor stated solemnly that it was the worst case of van-aerial disease he had ever seen.