I am new here and I agree with pupper lover, get the dog gradually used to any objects that he may have trouble with. Also I would bring him to the vets as often as possible for no treatment just walk around and sit there to get him used to it, maybe weigh him and walk in and out of exam rooms, it will also show him that it is not bad everytime he goes there. Make sure you bring plenty of treats and give lots of praise when he behaves correctly. Your vet should be more than happy to allow you to do so. But I would call first to see when the best time to do it would be so the exam rooms will be empty! I do not mean to be rude as I love weim's and used to have one but for some reason we see a lot of well natured weims at the vet office I work for become fearful/aggressive towards the staff there. Maybe there is a bred in thing that tells them we are bad LOL!