 Why is Joe trying to get drunk?
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. Instead, he was sent to a hospital where all criminal tendencies were removed from his mind by psychologists, shock treatments, encephalographic devices, a form of prefrontal lobotomy and a dozen other methods. He was a hero to the millions of men and women who had suppressed impulses to kill someone, beat their mates, get drunk, or kick a dog. On the other hand, attempted murder, robbery, kidnapping, etc., were not crimes.
 Joe is trying to get drunk, so he can get a month's worth of free food and lodging.
 Joe is trying to get drunk, so he can get a month's worth of free food and lodging.  Joe is trying to get drunk, so he can work up the nerve to ask the girl out.  Joe is trying to get drunk because he is depressed about his job situation.  Joe is trying to get drunk, so he can work up the nerve to commit a crime.