My 2 cents: Our previous service dog, Karma, was a pitbull-shepherd mix. A pound dog who exhibited the necessary skills. We got her as a puppy. We never played tugging games with her, because pits, when they bite, don’t let go. They have hug jaws. Tugging games encourages possessive behavior...
A perfect fit into your heart! My parents bought me Siggy for my 10th birthday because I was so lonely (my brother and sister had left for college that year).