Yeah, but I’ve seen those so-called “deadman switches” fail in some weird ways. It is unlikely that the diesel engine started of its own accord either...
I think you may have an idea of the obvious conclusion I’ve come to. The authorities might want to see who that boat belongs to.
I agree that I’ve never seen a boat start itself. :-(
Brings to mind that old saying...the best two days for a boat owner are the day you buy it, and the day you get rid of it (in most cases, the latter means selling the vessel)...