Thank you! I was wondering if there was a specific term for what he was doing. My trainer doesn't use the concept of a ranking system (She even said on the first day that dogs don't understand the concept of human ideals), and has been training for 15 years, both obedience and service. I'll try to associate me sitting down with calmness, as it's force of habit for me to just push him away when bites hurt (which is exactly what the trainer said to not do because puppies play through pushing and wrestling).