We're talking about some initiatives at our bigger regattas to host a "basic rules" seminar - It's certainly been done before, but we're going to try and do it on a regular basis next year for that very reason. We do have some new people on the course that don't understand some basic rules...and it can get dangerous. However, there are about 4 basic right of way rules, that if you understand will keep you out of any serious trouble. Above all, making SURE the other guy knows your there can avoid most incedents!