A form of outdoorsman. He who the clowns imitate. The booze nose, the blown toe shoes, oversized pants, undersized topcoat. Stereotyped as society's failure. The bum is one big impropriety, a social failure. He's the man listening for the jingle of change in the bottom of every man's pocket. Don't let him know you have something he needs.
Look at that man lying face down in the financial deep end. Son, that is a bum.