So, I'm not sure if this is the right forum to post this, but hopefully some of you out there can help. We've been thinking about getting a second dog for a few months now. By chance, we happened to have Guthrie with us at the pet store when the humane society was there with a couple of dogs for adoption. A beautiful "pit bull mix" caught my eye and Guthrie's. She is quite small, maybe 12 inches tall, and no more than 30 lbs (so the size differential piece is there) and 4+ months older than Guthrie. They immediately started play bowing and sniffing each other, it seemed like quite the match made in heaven. We're thinking about going in today to pick her up for a home trial. (I put "pit bull mix" in quotes up there because it seems like 9 out of every 10 dogs that go in there are labeled like that, whether or not they are.) I started researching pit bulls, though, and now I'm a little concerned. She seemed so calm and submissive, but now I'm reading about dogs whose Dog Agression just "turns on" one day. For this reason, they advise never leaving one unattended with another dog. One of the reasons we're thinking about getting a second dog at all is because of how enormously dog social Guthrie is. We've babysat dogs for friends and family, and he loves it...he's not a resource guarder, no problems sharing space, he just loves having a playmate. He's only alone for a few hours a day, but I was planning to leave him unconfined with his playmate. So, I know there are a few Staffie and Am Staff owners on BW, and my question is mostly to you and other "pit mix" owners out there. Do you leave your dogs alone together? What's the consensus?