Here's a couple:

1) Wife got severely bruised when she got knocked off her feet on the wire and swung forward, then back into the boat where the rear bracket for the magnum wing (which were removed at the time) stuck out - lots of pain and ugly colors that lasted for awhile.

2) On a keelboat while trimming a jib on that boat for the first time, did not know that the winches were two-speed and expected the handle to freewheel in the backward direction, did something to my shoulder that took many years to go away.

3) Got hit in the head with the clew track/mainsheet block on a 6.0 during a high-wind accidental jibe during the early stages of the first leg of a C-100 - knocked me silly at a bad time and opened up a cut that probably should have had stitches. Once my wits returned I put my hat back on and we ultimately won the race. Hat looked pretty gross when we got to Solomon's, shaved a bit of what's left of my hair and used a wound closure bandage for the next day.

4) During that same race good friend had his eye permanently injured from flying trapeze gear, resulting in a rescue situation. After this race I started to consider helmets in certain conditions, and making sure that eyewear had some impact rating.

The best one was when one of the Fleet's Inter-20s capsized at the start of a Tuesday race, and the crew fell in such a way that he straddled the boom. Broke the boom, and the crew was walking mighty slow for awhile - not sure what was hurt more, his pride or his pride, if you know what I mean... Team shall remain nameless...

I'm sure there are more.