RedactedNarrative: According to the victim, they were leaving the marina and he became aware of a cooler lid that appeared it was about to blow off; so he moved from his position at the stern of V1 toward the bow where the cooler was located.  He said in his attempt to catch the lid, he lost his balance and fell to the deck and caught his knee on a snap and cut it open - requiring stitches.  He indicated V1 was neither stopping or accelerating, but maintaining a steady course and speed; it was his own clumsiness that caused him to fall and if there had not been a snap on the deck he would not have suffered such an injury.