I have had a few dog trainers, none even came close to Mark. He is fantastic, after ONE session Belle was like a new dog, I used to dread walking her she was so reactive to people and dogs it was just a nightmare. We can now go on calm walks and I know all the signs to look for when she is feeling stressed and won't cope with a busy atmosphere. We had our last session today and Mark was able to come into the house and sit without being barked at and being lunged at, she was calm and even led ...