I tried OC several years back when I went to the local grocery store, OC is legal in North Carolina,(or so I thought). I wore my PT145 G3 in a Don Hume left hand JIT Slider holster, and two spare mags im a double mag pouch. As I was going through the checkout three local LEO's walked in and an elderly Black Woman pointed in my direction. The LEO's asked to speak to me outside. After hearing the elderly Black Womans reason for calling 911, I couldn't fault her intentions. Several years prior to this a grocery store with the same chain was held up in Raleigh, NC, serveral employee's were killed, her Son was one of them. All three LEO's were business like, but knowledgable of the Law governing NC OC and let me go... I've never OC'ed since... I do CC everyday though!
Exactly why I don't open carry except when out in the boonies. There are just TOO many busybodies in the world today and, frankly, I just don't want to expend the time to "explain myself" to LEOs summoned in response to MWAG calls from panicked (or malicious) busybodies.
An idiot with a cell phone is much more likely to upset your daily program than is a potential incident with a BG. Sometimes ya just go with the probabilities and act accordingly.