Ah but that would never work. That would be too subjective for an outsider to judge
and some dogs will turn on a dime out of the blue
rarely but it does happen and certain breeds are more subject to doing that
Dogs have rabies tags and can have a "record" associated with that tag or with the police department. And that's in Louisiana.
Other states have got to be more advanced....
Anyways - a read that hits on similar points:
http://www.pawnation.com/2010/11/22...be-honored-at-national-dog-show/?ncid=webmail
Despite Rufus' squeaky-clean humanitarian record, the highly decorated champion still runs afoul of bans that discriminate against "bully breeds," Bishop explains. Often confused with the pit bull, which is more or less a mutt (or "mix" if you prefer), the bull terrier is a tightly controlled AKC breed eligible to compete in events such as the highly esteemed Westminster Dog Show (which Rufus won in 2006).
Many facilities that Rufus once visited are now off limits to him or any other therapy dogs that have the misfortune of being born a bull terrier, bullmastiff, or pit bull. One such example is the Walter Reed Army Medical Center, where Rufus famously cheered up a bomb technician who was wounded in an explosion in Afghanistan earlier this year.