Actually, we should all go purchase
3 balls. IIRC we are meant to display these when we are aground. Also, a davis radar
reflector is not big enough at 11.5"dia. or so. The required size is .6m or about 23.5" I think. I raise a ball when anchored because I have one and it isn't hard to do. Can't say that somebody not raising one has ever endangered my life though. I try not to hit other boats, anchored or not. I did get lambasted by the captain
of a charter
boat once when I was in the process of trying to get my hook stuck in a weedy bottom with a strong current
once and he saw my running lights still on and thought I would move out of his way (He was passing through a designated anchorage) I suppose that I should have killed the running lights and hit the anchor light the moment I threw the hook but I was a little busy!