This is animal abuse.
I've always felt that way about police K9 dogs & guard dogs. Unless the sole purpose is to detect explosives(but I don't think that's ever the case)
Also not nearly as effective as a 9mm and at least in my state I can get my 9 mm into more places than I can get my dog.
I've been training my dog deliver one bark per person coming on my property.
I just need a head count so I know which tool to grab.