From facebook page:
There's always one.Knocker's Pizza Company, Inc. Thank you for your business. We have nothing against a person's right to bear arms. We have had an incident in the past with a man and a weapon which he insisted was concealed because it was inside of a case next to him on the bar. He refused to remove it insisting that it was his right and unless we posted no concealed weapons than he could bring it anywhere he liked. Other customers cited their concerns noting that many times there are children in our establishment. We certainly do not mean to offend anyone by our sign, but we do not feel that bringing a gun into a family restaurant is necessary. Thanks again for your past business.