It gets better.
Depending on the situation, you can do it this way:
“When bad people do bad things, who’s going to stop them? You?” Then sweep your coat or vest aside to revel your carry and say, “Or me?”
NEVER, EVER advertise that you are carrying.
Concealed MEANS concealed and what you suggest in a number of jurisdictions can be construed as 'brandishing', a misdemeanor in some, and a 3rd or 4th class felony in a lot of others.