A biggy for boat safety is knowing how to pilot the damn thing with regards to the safety of others.
A few years back we were on a lake that was so full of boats the water looked like a blender. It was the 4th of July. We were on our pontoon going fairly slow to avoid mishaps with other boats.
Then a rather large runabout cut right in front of us plowing water. The bow was out of the water and the top of the transom was level with the water. In other words, it was at quite an angle, far from planing. It’s wake was a 3 foot high wave on each side. And it went right over the top of our pontoon onto the deck. To top it of the boat was a water safety patrol. They were so stupid they had no idea what they were doing.
”Let me show ya something....!”