I know service dogs come in all shapes and sizes (including small ones). My question is just a matter of curiosity. I saw something unusual last week at AK and was just curious about it. We had an absolutely wonderful guide on the Safari and on the way out of the park that afternoon I stopped by guest services to leave a comment card for him. (He was really that good--best we have ever had). Anyway, there was a lady in guest services that had the cutest little yorkie in her arms. She was irate that the bag checkers told her she could not bring it into the park with her. I heard the guest services CM tell her that most service dogs had a vest they wore or at least paperwork that said they were service animals. Apparently this dog had nothing that showed he was a service dog. I had my doubts, simply because he was yapping so much and was so hyper. It was all she could do to hold onto him. He just did not seem like a well trained service animal. Anyway, I filled out the comment card and left before I saw what the final outcome was. I didn't think much about it until a few days later when I saw the same lady walking around, carrying the dog in MK. Do service animals have to wear a vest or at least have papers showing they are service animals?
This tiny dog may or may not have been a real service dog, but with his hyperactivity and constant yapping, just didn't seem to be the type. Do you have to show anything to prove that a dog is a service animal and don't they have to be well behaved and controlled?

This tiny dog may or may not have been a real service dog, but with his hyperactivity and constant yapping, just didn't seem to be the type. Do you have to show anything to prove that a dog is a service animal and don't they have to be well behaved and controlled?