The idea of a chair that con move around on command –and also get out of the way automatically when the roomda comes out at ninght to clean up the day’s mess- might take a little getting used to, it is true.but who could resist the idea, once he has sat down in it , of whistling for a foot-stool and having it trundle over from its lair in the corner, to place itself in exactly the right spot to receive a pair of weary feet.