four o'clock
Would-be discoverers of perpetual motion might have received many hints from Bubble , though he himself would have scorned to consider the swinging of legs as motion . He was under the delusion that he was sitting perfectly still . For the doctor was asleep . Asleep , at four o'clock on a glorious summer day ! No wonder his friend and partner wore a tragic face . `` Does n't seem to care a hang if he never gets any patients ! '' mused Bubble , resentfully , stealing a half fond , half angry glance at the placid face of the sleeper .