A dog lover, whose dog was a female and "in heat', agreed to look after her neighbors' house and male dog while they were away on vacation. She had a large house, however, and believed that she could keep them apart.
But as she was drifting off to sleep on the first night, she heard awful howling and moaning sounds. She rushed downstairs and found the dogs locked together, in obvious pain and unable to disengage as so frequently happens when they mate. Unable to separate them and perplexed as to what to do next, although it was late, she called the vet, who answered in an extremely grumpy voice.
Having explained the problem to him, the vet said. "Hang up the phone and place it down alongside the dogs. I will then call you back and the noise of the ringing will make the male lose his erection and be able to withdraw".
"Do you think that will work?" she asked.
"It just worked for me" he replied.