We're a little different there
Interesting dog, and out of all the dogs I've worked with, never have seen this type of behavior.
Severe anxiety complex when you leave the dogs presence (when I left him in the fence, tied off just so he can't escape). I've see that trait before, but never in a "loving happy go lucky dog" .
Dog was very "happy" to see me at the shelter, jumped right into the car. Kind of all over me.
Listens, and is very controllable 1 on 1 or even 2 or 3 on one with humans.
Throw another dog into the mix in his presence, and forget it.
Thing I've learned about dogs is that since they can't talk, you really have no clue as to their history.
Reality is he would make a good one dog owner very happy, but it's Russian roulette if he were ever to come into contact with another dog/animal. Only good thing is he weighs no more than 30 or so pounds soaking wet, he's very easy to control and pin with his collar if he goes off on another dog.
The shelter convinced me that being in a fenced in area with cold water and shade would be better for his last couple of days with us then the shelter environment, and probably happen to agree.