I've name-changed as this will be totally outing to the many people who know about our journey so far with our rescue dog.
It's early days with our rescue dog, who came over from Greece two weeks ago. Not a street dog, and not mistreated. But severely traumatised, I think, by leaving his home and the journey. He's very fearful. Not reactive at all (in fact, I've not heard him make a sound apart from snoring since he got here!), but incredibly submissive. He was submissive urinating whenever we approached him (e.g. to put a lead on him to take him outside) or if someone came to the door (including us), but that seems to have got better in the last day or so. But he's not really showing any other signs of feeling comfortable with us (he won't approach us at all, even for treats), all the usual signs of stress if we approach him (whale eyes, lip licking, lies on his back). We're doing all the recommended stuff of giving him space, dropping treats on his bed, kids (8 & 5) know to leave him alone (he has a 'safe space' under our stairs that he spends all his time in), etc. The only time he's really come out of his shell is when a friend came round with two dogs - he was like a different dog around them and it was lovely to see. He was also much more open with my friend than me - he would approach her and sit by her in a way he never does us.
I've had some advice from a behaviourist (basically leave him alone!) and I'm part of a very supportive online group of other owners who rehomed dogs through the same rescue, although the rescue itself doesn't offer any direct support (that's another thread). I suppose my question is whether anyone has experienced similar and how long it took your dog to come out of its shell and to start trusting you/ develop a bond? Any other tips?