One day we were talking about this and the question arose: If you discovered that you had exactly 13 shells what would you do? Leave one at home? Take them all? It suprised me how many wouldn't carry "unlucky 13" shells. Then I asked my grandpa. He told me he would take all 13. But would only shoot 12 at deer and save one. I asked him why and he told me if he missed 12 times he would shoot himself with the last one! That is just too funny!!