This reminds me of when I started sailing. Was maybe my third time on a sailboat, and I was with a (bit more experienced) friend sailing a JY15. Well a squall hits us and we flip the boat. He takes his sweet time to help right the JY15, and while I swam around the boat to release the lines, I hit something large and somwhat round with my foot.

I have no idea what I hit....but ive never righted a sailboat so fast!