While sleeping through a particularly windy (50-60mph) night in November 2018, about 0245 I heard a loud bang like a gun shot went of near my head in the V-berth. I got up to inspect what might have happened. The wind howled through the rigging. There were sails flapping, jibs ripped to tatters, halyards banging, and a lot of boat movement but nothing looked out of place. Next morning in the light I found a mark on the hull about 2 feet from where my head lay in the v-berth, and the mid spring lying loose in the water. The cleat was gone. Ripped out from the planks on the dock. When it let loose it smacked into the hull.
Never know what might happen in a storm.