The reason that guy is carrying a gun is because if he were unarmed and out in public, he would be getting beatdowns everyday simply because of his obnoxious attitude.
Police handcuff and hold at gunpoint every adult at an intersection for hours - Wilmington Civil Rights | Examiner.com
This is why you don't just consent. This is why you should always challenge someone infringing upon their rights. What's the catch-phrase, "If you aren't doing something wrong or hiding something, why not consent?" Here is why, the police just hemmed everyone up, cuffed them for 1.5-2 hours, and not a single one of those 19 people said "NO" to their vehicle search.
This is a prime example of conditioning folks.