The Drunkard

"'You were his guardian angel.'"

I found a considerable amount of irony in this story.  First off, the title is ironic because the drunkard referred to is Larry, who is not a habitual drunk, as the word implies.  Secondly, the parents were aware that Larry intentionally intoxicated himself.  In the end, instead of being scolded, Larry is commended.  He is even generously described in divine terms.  I took it as the mother believing Larry got drunk purposely to prevent his father from getting inebriated out of control.  Larry did not do this.  One would expect him to receive some sort of punishment, but the contrary occurs.