Classy....answer to your question.
You'd better believe that I would have been the first to jump up. I've done it. I've helped out in a medical emergency relaying information to the cockpit crew....I've been reseated at an exit in a planned emergency. The first thing flight attendants are trained to do in an emergency is to look for able-bodies assistants, and off-duty or deadheading crewmembers are your greatest resource.
Hope that helps.