An actor, to be any good can't be afraid of looking stupid. Some of the best moments you see in a play are the ones where the performer looks the most awkward or vulnerable or idiotic. What compels someone to want to make their living pretending to be other people. Johnny Depp is considering retirement for that very reason, if you can believe the newspapers.
Often the artists that are considered great posthumously were those street people that were scorned while they lived. Long live the dreamers, the scavengers and the fringe of society. It may not be the brightest thing to do, but I have to keep on dreaming.