My son has autism among other things. Sometimes he says inappropriate thing. We homeschooled him so he wasn't picked on badly. He had a therapist he saw often and was part of many homeschool groups and things at the library. His meltdowns are more internal then external. He loves his weighted blanket. As for a service animal only dogs and miniature horses are allowed. There are several things you can teach a service dog to do depending on your nephew's needs.