(1) No person, firm, partnership, limited liability company, or corporation shall own, keep, or harbor or allow to be in or on any premises occupied by him, her, or it or under his, her, or its charge or control any dangerous dog without such dog being confined so as to protect the public from injury.

(2) While unattended on the owner's property, a dangerous dog shall be securely confined, in a humane manner, indoors or in a securely enclosed and locked pen or structure suitably designed to prevent the entry of young children and to prevent the dog from escaping. The pen or structure shall have secure sides and a secure top. If the pen or structure has no bottom secured to the sides, the sides shall be embedded into the ground at a depth of at least one foot. The pen or structure shall also protect the dog from the elements. The pen or structure shall be at least ten feet from any property line of the owner. The owner of a dangerous dog shall post warning signs on the property where the dog is kept that are clearly visible from all areas of public access and that inform persons that a dangerous dog is on the property. Each warning sign shall be no less than ten inches by twelve inches and shall contain the words warning and dangerous animal in high-contrast lettering at least three inches high on a black background.