RedactedNarrative: V1 was tied to a dock when the operator unintentionally hit its throttle forward. V1 traveled forward into the back of V2 (also docked). The operator of V1 then changed the throttle to reverse driving the back of V1 into a dock piling. 
  
  All persons involved were uninjured. The operator of V1 unintentionally actuated the throttle forward into V2 then counteracted by reversing V1 into the dock piling and was the primary cause of the accident.