I have a 2-year-old black male intact Schnauzer. He's not housebroken but he is okay in a crate at least for a couple hours which is all I've tried. I'm working on leash training. He's fine with other dogs but doesn't back down from confrontation. He doesn't start them. He seems smart and perceptive. I haven't had him long at all and did not ever intend to keep him. Let me know if you have other questions