Mods should move this to the Concealed Carry forum.
The OP has a point. We are a 'club' of sorts, in that we are a group of folks commonly united by the 2nd amendment and taking the personal responsibility of protecting and defending ourselves and our family and property by using a tool that some refer to as an "equalizer." The gun I carry helps this old guy defending himself against a younger stronger attacker better than calling 911.
One of the reasons we CC is because of the potential of undue attention and overreaction of that one person in the crowd whose hoplophobia overcomes their normally calm demeanor and common sense.
I always check before going out if I am printing, or that the shirt or jacket I am wearing is long enough. if one or the other doesn't work I just don't choose to wear it ever again.
Once out and about, I do check as often as I think necessary and as unobtrusively as possible but that in itself is a potential 'tell.' In and out of the car, seating in a restaurant, are examples potential opportunities for accidental exposure. But I do forget I am carrying. Heck, I got a chest xray two weeks ago forgot I was CC'ing...
BUT, I think if for that one-in-a-milliion chance that my shirt or jacket ran up it would be discourteous for another CC person to not say or do something quietly to me - a very quiet word or a "high sign" or something. The cat is already out of the bag, so to speak, so why would I object if someone came up to me quietly and indicated my problem?
And no, I don't look for others carrying - none of my business and not important to me. Around here everyone is wearing untucked outer long shirts and jackets due to the weather, which even in summer requires an outer garment.
And that bulge in my pocket is not a gun and not because I am glad to see you.

I carry two cell phones.... really.