Opts out of concealed carry, opts in to stupid:

Sharon Houlette, a detective with the UALR Department of Public Safety, responded to the [email] thread [about campus violence] with advice for avoiding being attacked, which included a suggestion to “glance or nod” at possible attackers.

“A glance or a nod will help you show anyone who might think that you are not paying attention, and you are aware of their presence,” she wrote.

Always remember: you can get more with a nod and a gun than you can with just a nod.