I’ve lost count of how many times I’ve made this point, but please take this as a WARNING, and not merely an observation: Anti-social behavior—think about the guy blasting music from a speaker, talking loudly on speaker-phone, smoking inside the subway car, etc.—in public spaces is often engaged in ***_as a dare_***. The whole point is to provoke anger and annoyance in those around him, which serves two purposes, depending on the response he’s hoping for: (1) If everyone bites their tongues, the antisocial asshole gets to tell himself he’s such a badass no one would dare speak up; or (2) If someone confronts him, he finds his excuse to scratch a violent itch. Understand that saying something to these people will often come with a real risk of violent confrontation.