Both groups are jackasses. The driver told the guy he had a gun and the guy started shit. Why would you start shit with someone who tells you they are armed? I believe in a different video (it may be the same one) it shows the bikes boxing the guy in and staying stopped even though a light had changed. Really not cool in my book. Agreed that it was definitely a pair of hot heads and that the one doesn't need to be biking in groups and the other doesn't need a gun.