A hellhound marries a man via the usual hellhound methods, however she finds out afterwards that this man has a history of working with notoriously difficult to handle animals and is well educated in the theory and philosophy behind taming and training animals. When the she does the usual hellhound bosts that she can't possibly be tamed, he takes it as a challenge. At least, he says that he does, throughout several years of marriage she's found him to be perfectly cooperative and pleasant to have around and she has even grown to be a bit more lax in asserting her dominance over him than other Hellhounds, confident that he understands his place in the hierarchy.
Then one day whilst talking to single man about what the married life with a hellhound is like, this happens.
What does the Hellhound do?