Tom, people boarding your boat in the night in Central america or the Eastern Caribbean is a somewhat regular occurance. When you catch the guy with your computer, GPS and camera in his arms below deck at 3AM is when it gets dicey. We lock the companionway door from the inside when alone in an anchorage. People on deck is one thing. Having a thief below is not something we want.
One of the things we liked about TD was that she couldn't be boarded easily. 5 feet of freeboard and no sugar scoop transom. Boarders have always gone to easier prey. Usually with an easily boarded boat. Any boat with stern steps is a bad boat for cruising as it invites boardings from swimmers. They come aboard from the water, get your stuff together and have their buddies pick them up with a panga. With all that freeboard we never had a night boarder.