I love what you are doing for the APBT with your dog. Not only are you having fun and providing it for others but also giving them hands on interaction with this misunderstood breed.
You are a true ambassador for the breed and for this I applaud you!
What you do, helps me out and everyone else on this site. Just like on bad media report hurts us, each person you interact with is a walking, talking testament to the true nature of these wonderful dogs!