Are you sure it wasn't a j/24?

j/24 had lockable lazerettes in the cockpit, and the issue was that when they flipped, the lazerettes could flip open (hinged on the seats), they would fill with water and would sink the boat. This was a well documented issue, and the "solution" was to lock the lazerettes to prevent the ingress of water. I suspect this was eventually fixed, but it's honestly embarassing how long it took

It's fascinating to me that a charter company did not lock them on the entire fleet and throw away the keys.