Seaplane pilot.

Indeed I have. It came down to "You can't prove it since you didn't smell his breath." kind of situation.

However, when he hit that tree with his pontoon, he had a little more trouble since someone called it in to the local PD.
 
It sounds to me that you are already doing everything in your power to prevent an indecent. Just follow the rules (like you are) and enjoy your hobby.