I did enjoy this one, mostly cute and funny as others have said. Not anywhere near the Trouble with Death Traps in my opinion, but those are tough stories to match.
One thing did jar me from the story, though. Dogs trained to fight CAN be rehabilitated. Since Vick has been mentioned already - almost all if not all of his dogs have been rehabilitated and are alive and well today. I suppose making it necessary to kill the dogs was the author's way to make the subsequent murders something the reader might get behind (although even this didn't do it for many EP readers) - but it struck me instead as poorly researched. But I suppose the story was just a thought experiment, after all.