DAve,
The answer is VERY simple for someone who doesn't pay for what they broke. Next time out on the course make sure you are on staboard and who ever owes you money is on port. Just don't forget to move forward just before impact so the tops of the bows are "aimed" down.
This is a very good thread and points out one of the main reasons why more people don't race - there are just too many jerks who race.
Steve.