hiding his condition became too much of a burden for katz and he eventually disclosed it. he began speaking publicly as part of a tour sponsored by a manufacturer of medications used to treat ms."people have been pretty supportive; nobody ever had me in mind for an action film because of the kind of work i do -- mostly in the world of animation, which is not a big issue because as a person, i can't run that fast; as a cartoon character, i can fly -- literally." katz, who now gets around with the help of a motorized scooter and performs onstage with the aid of a cane, says he doesn't regret his decision: "one of the reasons i disclosed my condition is because it is much easier to live with ms than to pretend you don't have it. if i could convince everyone of that, my job here is done."