I have a black and white old school colby bloodline female that I must get rid of due to having other dogs and another child on the way. She is crate trained and house broken. She is an amazing guard dog and wonderful with children. My son plays with her and she does not mind him one bit. She has an amazing temperament. Has never displayed aggression toward humans. She makes a great running companion and loves the water. If you take her to the lake she will refuse to get out the water. She understands the concept of weight pulling, however I never stuck with it. If you feel that you can provide her a great home give me a call and you can come out and meet her.