Cupidity and supidity usually sleep together . They go hand-in-hand everywhere. Stable boy is cupidly stupid as are all his underlings. You can fool some of the people all of the time which is what he has done to his base. You can fool all of the people some of the time it is said but it is incorrect because stable boy could not achieve it which drives him bonkers because he thinks he is such a great salesman! He also believes he can fool all of the people all of the time which makes him the biggest fool of all time. I guess he'll just hafta settle for that.
