RedactedNarrative: Subjects were working on their residence located on a canal off of Little Lagoon.  Their pontoon boat was moored at their residence, pulled up onshore next to their pier.  Another vessel occupied by a white male and his son were outbound toward Little Lagoon and ran into the port stern quarter of the moored pontoon boat.  The witness advised that the operator backed away and sped into Little Lagoon without stopping to exchange information.  A registration of NC5451ES was passed on, but upon checking NCIC, that registration does not come back valid.