We got our rescue dog a week ago yesterday. He came with kennel cough, was covered in flea dirt and also had some live fleas on him. He wandered round when we got him home, but not at all lively. This, I feel, was a combination of not being well, and a little shell shocked at another place to stay.
We have taken it very gently through advice given by the rescue home and the local dog warden. They basically said let him potter in just one room for a few days with very little interaction, don't get in his face. We took him to the vet for a check up, got antibiotics and anti inflammatory for the cough. We thought he was about 10 months according to rescue centre, vet said more like 4 or 5 years old. He is underweight and has very little muscle in his back legs. I Was going to take him to the groomers top get rid of flea dirt etc, but obviously didn't because of cough. We didn't know how he would react to any situation, but I decided to give him a warm gentle shower with a puppy shampoo, using a very soft sponge to get through his fur. While washing him, we saw that he was bleeding, but couldn't find any cut while washing him. Once we have taken him out and gently towel dried him, we discovered he had little cuts under his chest, maybe caused by itching because of fleas. He lay down to be groomed, and we removed as much as we thought he was able for. I then did the same the next evening. He has become much happier in himself, as he was quite distracted itching.
We are going easy with the walking, and he is eating 100% new complete food. We have no idea how he will react in any situation, from grooming, to 'no' being said to him, travelling in the car, meeting other dogs etc. He has no interest in toys, but when he is completely better I will work on this. I guess if he has not been played with, how will he know what to do. He loves a tickle and a snuggle, and now has a lovely home life. I feel so good that we found him. I would just say go very slowly.