Well, we did it! We now have one rather leaky 5 month old yellow lab
His temperament is really just the *best*, and it is seeming to me like his problem is just that his bladder has trouble with excitement. He apparently did not poop in his cage after the first few days at the shelter, and he has not done it in the car or here, yet -- in fact he seems to have a very clear idea of where he wishes to leave his deposits (in the best-possible location for us, too, as it happens) and tows you over there when you take him out if he needs to poo.
He held nearly all his pee for overnight (although he seems to have great difficulty with the ninety seconds between opening the crate and making it out the front door) and was totally-dry in the crate from 8 to 11 while I was out, and despite a small leak on the way to the door he held the great majority of his pee til we were outside. It was a *lot* of pee, too
He is just SUCH a good boy, totally gentle and nonaggressive and just a *tad* bit towards the submissive end of the spectrum but not to the degree of being timid or upset by things. He is learning VERY fast about things like sitting before doors open and after you walk through them. It's going to be a big time-consuming inconvenient nuisance for a while but I really think we can get him straightened out, at least sufficiently so.
DH does not want to keep his original name "Buddy" so we have to find something else that suits him... how hard is it on a dog of this age to change its name? Would it be a lot better to pick something that at least sounds similar, or how much does that matter?
Pics to follow, perhaps this evening.
Thanks everyone,
Pat