I adopted my dog from the foothills animal shelter. He was 5 months old when I got him and is a Pit bull/Ridgeback mix. His best friend is an 8lb cat and doesn't have a single aggressive or dominant trait in him. He was letting my friends 2year old jump on his back and ride him around. I would check there for sure. The staff was very helpful and let me walk him through the stray cat area to see how he feels with cats which really helped me solidify my decision.