The dog spent four years in a shelter and walked around the ring, which suggests that he needs a mother with the same energy as himself.
Boomer is amazingly active and hyper for his age. He looks like he is approaching senior status, yet he loves running all day, like a puppy/juvenile. I hope he will be fit and healthy and joyful for many more runs with his mom.
Thank you so much for rescuing the dog. Giving him love and a forever home. Now in return he will love you and be faithful to you the rest of his life.