Fingers in an overcoat pocket. Fingers sticking out of a black leather glove. The nails chewed raw. One play is called "Thieves' Market," another "Night in a Dime Museum." The fingers when they strip are like bewitching nude bathers or the fake wooden limbs in a cripple factory. No one ever sees the play: you put your hand in somebody else's pocket on the street and feel the action.