What would you do if you had spent 2 or 3 hours on the phone arranging and double-checking on the availability of an assistive listening device so your child could accompany you to a Broadway show, only to be met by an ill-trained, if well-meaning , attendant holding a cardboard box of jumbled wires and gizmos? It gets worse. The attendants hands you a patch cord for a cochlear implant. Your child uses hearing aids. You could get upset, or you could take positive action….