I have a Standard/Walking mix and when I got him he was a hand full. He was as crazy as crazy could get and now he is as tame as a horse could get. I have allowed my five year old niece to ride him and he is as calm as could be, he doesnt buck, bite,or try to run off with you. He used to not want anything to do with people and now you just walk up to him and he'll love on you like a big baby. My other horse she's a registered Quarter horse with a beautiful blood line. I bought her in the middle of last month and she was only green broke and now I am starting to ride her.