Originally Posted by Jacktr
I am sorry to hear of your problem.
It sounds very much like lack of socialisation as a young puppy. He is obviously very worried and stressed when faced with new situations and people. Unfortunately locking him away is only reinforcing his worry and fear. You will need to go very slowly and carefully about trying to sort this out. Your son and daughter-in-law or your selves need to try to make time to take him to training classes. This would help introduce Winston to other people and dogs under controled circumstances and teach him not to be frightened of others. Try taking him to places (for short periods, at first) where there are a few people and dogs, but just sit quietly with him and reassure him that all is OK. Praise him when he does not bark. I used to sit at the end of our drive with small puppies to let them see the world go by and meet people and dogs. That is what Winston has missed out on and now needs. Throwing him at the deep end, so to speak, will not work. It will be a lond slow progress. Hope this helps a little. I am sure others will have more ideas to help
all the best