He has a sweet face. :~) And although we've been a little reluctant to poke and prod him too much till he's got some trust in us (I guess he has a similar possible hot spot on his belly) I think he's basically really good natured. My dogs challenged him pretty aggressively through the fence, and for that matter, so did Cisco, and he basically ignored them all. And he sniffed Cartman, and got hissed and whacked at, but he wasn't overly lunging at him, and backed right off when Cartman hissed.
He and Cisco are now taking turns with certain toys, and he's not defending possession at all.
I'm gonna need more nylon bones if he's here more than a few days.
*sigh*
He's also licking at himself somewhat. Trying to discourage that.