The last time I went to my bank, I told the branch manager how much safer I felt knowing that no bank robber would dare bring a gun into the bank, since there's a big sign saying that guns are not allowed, even for those with a CCW permit! He wasn't amused, and said it wasn't a joking matter. I told him that his sign, and the bank's policy was a joke, and that if I was ever in his bank, and injured while a criminal was robbing it, I would personally see that he, and the bank was sued for as much as I could get a jury to take from them, for preventing me from being able to defend myself, and then failing to protect me.
Mark
Better yet, change banks now and tell them why.