What makes you think they are watching at all? Way off Panama ,becalmed mid day. SV Sirius
, copy of Slocum's Spray,. no electronics or engine., oncoming freighter Bob Carr,70 odd years old, flashes a mirror at the bridge .but they ram anyway and carry on. Dismasted, bulwarks gone, Bob gets towed into Costa Rica a couple of weeks later and it was all downhill from there, but that's another story.