I've lived with big and medium size dogs my entire life, and though walked and sat dogs of all sizes, I have the most experience with big dogs. Growing up in Colorado's ski towns, I'm no stranger to high energy dogs who need to get out in nature to play. My own lovely ball of fur and slobber back home is a 100+ lb mutt of Rottweiler, Burmese, German Shepard, etc. who my mom and I have trained from a puppy. The previous dogs in my life have been a little smaller, and sadly all had medical complications that required daily oral medications and attentive care, which I administered. My own personal experiences aside, I have been responsible for sitting and walking young pups all the way up to older dogs, both big and small, from high energy to couch potatoes-and loved each one unconditionally.