I agree, but sooner or later it catches up to them. My buddy lost both his bikes and his trailer years back. Some how he heard it was a B rider who was behind it, due to noticeable characteristics of his bikes. Years later the same guy was working at a Motocross shop and his boss was informed about the incident. Once you develop that type of reputation, things get a lot different in life.
In the end, I really feel bad for the owner and I hope he can recover his ski.