I don't carry a gun, don't do drugs, and don't break the law. I still do a massive double take when a cop car pulls behind me. Yes I realize they're human and most of them aren't sociopaths. But people with a badge can totally fuck your life (sometimes without meaning to) and rarely face repercussions. Telling people that if they're not doing anything illegal they have nothing to be afraid of is stupid. You should always be on high alert when you're dealing with someone with a weapon who could easily shoot you on a suspicion and would almost certainly not be prosecuted for it.