After seeing some of Mark's YouTube videos I knew I had to talk to him.  Being a fellow dog trainer I had heard of him and what you will hear is our very first conversation.  It was fascinating to hear his story from having his own store, a bad car accident, being the "Rotty Guy", and now presenting during his "Training Between The Ears" (TBTE) workshops.  Would love to know what you think - hit me up on Twitter and let me know what you thought  @vermontdogtrainer