§ 18.12.040 NEGLIGENT OPERATION.
   It is unlawful for any person to operate or cause to be operated a vessel in a negligent manner. For the purpose of this section, “in a negligent manner” means in such a manner as to create an unjustifiable risk of harm to a person or to property and which, as a result of the creation of the risk, actually endangers a person or property. An unjustifiable risk is a risk of such a nature and degree that a failure to avoid it constitutes a deviation from the standard of care that a reasonable person would observe under the circumstances. Proof that a defendant actually endangered a person or property is established by showing that, as a result of the defendant's act or omission:
   (A)   A collision occurred; or
   (B)   A person, including the defendant, took evasive action to avoid a collision; or
   (C)   A person, including the defendant, stopped or slowed down suddenly to avoid a collision; or
   (D)   A person or property, including the defendant or his property, was otherwise endangered.