Wis. Stat. § 941.10: Negligent handling of burning material.

(1) Whoever handles burning material in a highly negligent manner is guilty of a Class A misdemeanor.

(2) Burning material is handled in a highly negligent manner if handled with criminal negligence under s. 939.25 or under circumstances in which the person should realize that a substantial and unreasonable risk of serious damage to another’s property is created.