 Why did the bartenders water down the Joe's drinks?
Each bartender could not only mix drinks but could also judge by a man's actions and speech when he was on the verge of drunkenness. I've been a garbage man, street-cleaner, ditch-digger—" On the other side of the room, the jukebox came to life with a roar and a group of teen-agers scrambled to the dance floor. There were no longer any prisons—CPA officials had declared loudly and emphatically that their job was to prevent crime, not punish it. The CPA system was, actually, cheaper than previous methods because it did away with the damage caused by countless crimes; did away with prisons and their guards, large police forces, squad cars and weapons.
 Drunkenness was illegal.
 To avoid having to provide a room for anyone too drunk to leave.  To avoid chaos in their establishments.  To keep the patrons purchasing more and more.  Drunkenness was illegal.