RedactedNarrative: Watercraft #1 was participating in a boat parade on the lake. Operator of WC #1 was leaning over the side of the pontoon, reaching for a belonging in the water. The operator's leg/thigh area pushed the throttle forward, causing the boat to go into max speed. WC #1 crashed into WC #2, which was on a boat lift, unoccupied. There were no injuries and life jackets were being worn. Alcohol was not a factor. There was damage to both watercraft involved.