He sleeps in a pile of cardboard in an alley. The police know he’s there, but they usually don’t disturb him, because he’s less of a problem when he’s unconscious. It’s when he’s awake that he bothers people.
His ex-wife has a restraining order prohibiting him from coming within a hundred yards of their former home. The last time he came by he tried to steal the lawn mower in order to sell it, but she had changed the locks on the garage door.
When he drinks he quickly becomes angry at perceived insults and slights, eventually provoking a confrontation. Even though he’s clearly in the wrong, the net result is that someone else ends up paying for his tantrums. Always the victim, he nurses resentments and plots revenge which he can never seem to enact because he forgets his plans the moment he makes them.