How do most experienced yacht'ers secure their boats at night when on the hook or at a mooring? It seems you could easily be boarded while all are asleep. Parked on the leeward side of an out island would seem to be at the mercy of a passing rogue vessel. I would think being armed would be at the minimum, deck alarms.....is that an option? What about running during the day, and hearing a distress call only to find out that the distress is going to be your own since the call is to lure an good citizen boater to a hostile takeover? What are your common precautions to boat security?