I guess I'm old school, but I don't particularly see anything wrong with it and the yelping made it pretty funny to me. As someone said it could be another country where they still consider an unwanted litter of puppies a nuisance.
Where and when I grew up that was the standard way of getting rid of them except most people put them in a sack so they weren't going to survive.
Not here to argue and I won't respond to OMG your a jerk type comments, its just the way things were 15-20 yrs ago in southern, OH and I bet it hasn't changed much.