freaked out because of clinic smells?
andre and twix are brothers. twix always loses control when he is taken to the vet. one time they had to gas him because he was biting everyone, and last time he needed a sedative so he would be calmer. today we took andre into the vet for a checkover because he is losing fur. we got back an hour ago. when we let andre out of the carrier, twix came over. when he got near andre he started hissing loudly and laying back his ears. we put him in my sisters room with food, water, and a litter pan while we went to dinner. we just got back from dinner, and let twix out. the minute he saw andre he started hissing again, just as bad as before. he is back in my sisters room. what can we do to stop this? is twix freaking out because he smells the clinic, which he hates? does andre smell different and twix doesnt recognize him anymore? any ideas would be appreciated.