Just to add my little chirp. The luckiest I've been:
Last month, I left my boat on the trailor in our boat yard next to the beach overnight as I was sailing back to back days. The following morning while on route to the club I got a phone call from a mate saying he had just stopped my hobie from crashing into a car. Some members of the club like to park there cars in our boat yard (when they shouldn't as it's a pain for the sailors), and the wind had picked up enough to push my boat and trailor 6m accross the yard and straight for some guys new car. I was quite releived that my mate stopped it short of the car and secured the boat down