BTDT. Found the only rock in Sand Bay. was in 6' of water, hit a rock the size of a desk that was pulled off the shore during ice out. took out both my props. I then named the boat Rock'n Along
Just 'ate' another prop and dinged up the skeg a bit. Learned years ago to carry a spare. New one ordered, just have to go slower for a while, 15 pitch spare just won't do it. Oh Well!