There was a situation, I want to say 2-3 years ago, that was recorded in a police blotter--I want to say Methuen, but I don't recall precisely. A nosy neighbor called the police when she saw one of her neighbors in his house with a gun. The cops asked her if he was doing anything threatening with it, and she said "no." The blotter then recorded, to paraphrase, "The officer then advised the caller of her neighbor's Second Amendment rights." Unfortunately, there's absolutely nutcases who think the mere sight of a firearm merits a call or that it's somehow prima facie evidence of malice. I guess they don't really think about how people need to clean them, inspect them, prepare them for transport, etc. I often wonder, when out and about, how people I interact with's reaction may be different if they knew I was carrying. I was actually at a brewery once after a USPSA match and I was wearing a magpul t-shirt. The bartender asked me "what the logo was" and I replied, "oh, just a polymer company." He then said he thought it was a superhero logo of some kind.