Re: Know the rules!
sailing last weekend on the SF bay most people seemed to know the rules.
the only time it got tricky was that there were _a lot_ of races going on. they tend to have closer margins of safety than i do, but generally seem to be pretty aware.
i generally tried to stay away from the race courses, and even took a bit of a detour to allow a fleet of racers get through my intended course before i got there, but it got a little close sometimes.