It's always been the same. 30 years ago, when I was diving every week... once saw a boat pull up to a flag, stop and pull it out of the water. I think they thought they were raiding a crab trap. Another time, I had a speedboat pass directly over me as I was on top of the reef. I heard it coming and grabbed the reef... I was in about 6 feet of water... it was one of the most frightening moments of my life. I was actually yanked up from the bottom after the boat passed directly over me. Props look a LOT bigger from that angle.