Service Dogs assist people with disabilities other than vision or hearing impairment. They can be trained to work with people who use wheelchairs, have balance issues, have various types of autism, need seizure alert or response, need to be alerted to other medical issues like low blood sugar, or have psychiatric disabilities. These specially trained dogs can help by retrieving objects that are out of their person's reach, opening and closing doors, turning light switches off and on, barking to indicate that help is needed, finding another person and leading the person to the handler, assisting ambulatory persons to walk by providing balance and counterbalance, and many other individual tasks as needed by a person with a disability.