re: Stealing third with no outs.

You steal 3rd on the pitcher...not the catcher. Some pitchers have a habbit of one look to 2nd then turn toward home with a pause before going home. The runner can pick up on this and get a slip step going to give him a big jump.
And you get a split second advantage if there is a right rand batter at the plate. He can stand his ground and the catcher has to make a step to the left to throw behind the batter. Catcher does not get his entire body into the throw.