My Plastic Conscience

JUST RECENTLY, I acquired the dandiest little gadget you ever saw. I picked it up, free, at an alcoholism seminar where a state patrolman manned a booth on traffic safety. It's a sort of circular slide rule that fits into my coat pocket. By dialing its thin plastic disks, I can find out exactly how many ounces of beer, wine, or booze I can drink before raising my blood-alcohol level to the point where a cop will get the silly idea I'm drunk.