Mo. Rev. Stat. § 577.024: Unlawful use of water skis and surfboards — penalty.

1. A person commits the offense of unlawful use of water skis and surfboards, if such person:

(1) Manipulates any water skis or surfboard in a reckless or negligent manner so as to endanger the life or property of any person; or

(2) Manipulates any water skis or surfboard while intoxicated or under the influence of any narcotic drug, barbiturate, or marijuana.

2. The offense of unlawful use of water skis and surfboards is a class B misdemeanor.