May want to check out the most famous of this site's posts. You'll need refreshments, somewhere to calm down, and about six hours to get through it. Nevertheless, I can't think of somedog more qualified to educate you than Stumpy
You will also be taught how to act as an intruder wearing a padded arm!
Is there something special about being trained as an intruder with a padded arm? I would have thought it would have been quite straightforward to intrude with or without the arm thing. Unless of course the padding was used to break a window without risking personal harm - to your arm.
Is there also a risk that protection dogs will only attack people with padded arms (or those unfortunate to have arms which are naturally big and merely look padded). I have big arms and now feel potentially discriminated against!