I have two one eyed friends, one was stretching a bungey cord over a camping trailer when the other end let go and knocked his eye out, the other was removing a brake return spring with a pair of long nose pliers, the pliers slipped and he stabbed himself in the eye. At the same garage, the apprentice was told to hang on to the end of a disconnected truck propshaft with a rope sling while the truck was pushed outside, the prop picked on the sling and removed one of his fingers.
All simple incidents and so easily repeatable....