I've OC'ed in the mall as well as B&N (<-several times) and not had any issue yet. The last time I OC'ed in B&N was just before Christmas. I was buying a tablet for my wife and had two employees helping me out with picking out the right one. It was busy but not overly crowded but I didn't see any negative reactions from staff or patrons.
My wife has been begging me to take her shooting again. If you want to meet up one evening @ Targetmaster, your daughter is more than welcome to try out my S&W MP40 and the wife's MP Shield (9mm).
Your life is made up of 2 dates and a dash... make the most of the dash!