Please count me in on this thread as one who is thoroughly disgusted by anyone who profits off of the back of dogs of any breed that is not suitable for any living creature.
I think if puppy mill operators were made to live in the filth they require of those poor animals it would be a "start".
If Judges can sentence Slum Landlords to live in the pigsty's they rent out to humans...than, I think a cage under the same conditions their animals must live in should be Puppy Mill owners next place of residence.