A person shall not leave a campfire, kindled or attended by him, burning or unextinguished unless one of the following requirements is satisfied:
(a) He leaves some person in attendance.
(b) The fire is enclosed within a stove, oven, drum, or other nonflammable container, in such manner that the fire cannot escape from the container.
No person shall allow a campfire, kindled or attended by him, to spread after it is built.