Looks like David Hogg was in California 6 months before the Parkland FL alleged shooting getting into another perceived victim situation. Notice how the surfer positions his knee board directly and firmly on top of the garbage can. This looks to me like he was trying to get the lifeguards attention. "He did not want to get sand on his kneeboard." OMG, maybe he did not want to get water on his kneeboard either.
Note how David Hogg states that they have a lot of fire drills at the Parkland School. Notice how he is being coached on what to say. He allegedly was a school journalist and actor. Two good skills for a crisis actor. This kid is bogus all the way.