Again, the old guy came on with an attitude, and he gave one back. What you can't see is the people here are giving BS exactly what BS gave the old guy, an attitude for an attitude.
BS didn't "give one back" He started it with the loud muisic.
Until you see that the loud music was the first act, the inciting force, of the "rude exchange" you will not understand what ocurred.
Think about this, would the old guy have been likely say anything to BS if the music wasn't loud? Be intellectually honest. It's ok to consider others perspectives here. If you admit you are mistaken I am not going to stand up and say "Neener neener". Instead of trying to "win" consider what actually took place.
Again... none of the exchange would have taken place if BS hadn't been playing his music loudly. I'm guessing most of us like loud music... my fun car has 1600 Watts in its' two amps so it's not like I don't love the thump, I just don't feel it's appropriate to force my music on others.
I do not believe you are so obtuse that you do not recognize that the loud music set the event in motion. I believe you are smarter than that. I honestly believe that, at this point, you are arguing for argument's sake.. just to win. Remember, BS initially said not "ear bleeding loud". This was an admission that the music was at least somewhat loud to him. Think of what the old guy, considering he prefers a different kind of music, must have thought.