Hot on the heels of King C's post about kids in pubs, we now have an epic fracas between two titans of British beer writing--Pete Brown and Roger Protz (Protz comments on the original post, then expands things here). For the voyeuristic, a fun read. And be sure to hear the accents in your mind's ear for full effect.
My comment is this: in public spaces you will find bad behavior. Mostly you'll find good behavior, but you'll also find a bit of boorishness. Add booze and you speed and intensify things. The only moral is that humans are flawed; gather a group of people together and you see the flaws on glorious display.