Just watching Traffic Cops and seen a police dog take chunks out of a couple of car thieves who had been hiding in a ditch. Go Fido! 
markeg said:Always remember seeing the military guard dogs being trained - guy always dressed in the michelin-man suit playing the intruder part. One hot summer's day, the intruder decided he'd only wear the arm protection. Samson was a huge Alsation being trained that day; was let off the leash, told to "go get"; guy trails his arm back for the dog to bite, Samson ignores the arm and takes him down by the buttocks. Not really funny for the 'intruder' as he had a few stitches and a tetanus shot, but we couldn't stop laughing about it for weeks.