A guy I went to high school with joined the marines right out and was lucky enough to be selected to work and train the K9s. I lovedddd all the videos and pics he'd post! One of them even lived with him after she retired, until she passed recently
Another friend of mine from college does that personal protection training with her GSDs. She has two she takes to this training center once a week and they practice with those bite sleeves and suits. Her dogs do some pretty awesome ####. I love it.