Not filling boxes to help you move, but “packing heat” -- as in carrying a gun? Many agents are doing just that these days to protect themselves when showing houses to complete strangers, or listing houses for sellers they aren’t familiar with, according to the National Association of Realtors. Male agents were more likely than their female counterparts to carry a gun; women overwhelmingly preferred to carry pepper spray. Overall, the NAR survey found that half of all agents carry some kind of self-defense weapon. Even male agents are being attacked.