Wis. Stat. § 97.627: Causing fires by tobacco smoking.

(1) Any person who, by smoking, or attempting to light or to smoke cigarettes, cigars, pipes or tobacco, in any manner in which lighters or matches are employed, shall, in a careless, reckless or negligent manner, set fire to any bedding, furniture, curtains, drapes, house or any household fittings, or any part of any building specified in sub. (2), so as to endanger life or property in any way or to any extent, shall be fined not less than $50 nor more than $250, together with costs, or imprisoned not less than 10 days nor more than 6 months or both.

(2) In each sleeping room of all hotels, rooming houses, lodging houses and other places of public abode, a plainly printed notice shall be kept posted in a conspicuous place advising tenants of the provisions of this section.