Her dog was in heat, but she agreed to look after her neighbour's
male dog while the neighbour was on vacation.

 She had a large house and she believed that she could keep the two
dogs apart.  However, as she was drifting off to sleep, she heard
awful howling sounds. She rushed downstairs and found the dogs locked
together and unable to disengage, as frequently happens when dogs
mate.

 Unable to separate them, and perplexed as to what to do next, and
although it was very late at night, she called her vet, who answered
in a very grumpy voice.

 After she 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
he will be able to withdraw."

 "Do you think that will work?" she asked.