So what are the requirements for becoming a therapy dog? All dogs must pass a pet evaluation. The basic rules of sit, stay and come must be followed. They can not be frightened by sudden loud noises such as vacuum cleaners or other medical equipment. They have to be comfortable being handled by other people. They may not grab for treats, they may not jump on anyone and especially no barking while they are working. When there is more then one animal on assignment at once they may greet each other before the session starts but once they are "working" their interaction is focused on the humans they came to visit. Once a dog is in the program they catch on fairly quickly and learn the routine.