Well, the flavor of the confrontation in question now is changing from the original take. If such be the case, and the lad was really shooting at the belligerant drunkard off premises, and after the drunkard had given up, then that seems to be a bit over-zealous to me as well.

As for the cops in the movies, well let's say there are times when art still imitates life, and we can leave it at that I suppose.