I have 2 boys (twins ) in for neutering on Tuesday, Charlie and Archie. They live separately. Charlie is a lovely boy and I want him to live with Daisy, Archie is not as nice so he will be living with Pandora. The problem is they look alike and I am really worried they will get mixed up when at the Vets. I don't think they keep them in their Pet Carriers, so does anyone know how I can ensure which one is which. I originally was going to have them neutered on separate days but because of the restrictions the Vets want to do them at the same time. This in itself is a bit worrying, mainly as I don't know any of the Vets now as all my favs have left. Even the main Vet has gone as he retired. Maybe they have some kind of dye there that they could put on one of them?