No, the point of the knife could put an eye out, or you could be cut by it. Yes, one could mash a finger or a piece of metal could fly off the nail and puncture the eye. Wear goggles or glasses when using a hammer and nail. Metal against metal could dislodge or the whole nail could glance and hit the eye and put it out. The school should have accident forms that should be filled out and signed by the principal and instructor who witness an accident, should an accident occur at the school, anywhere.
Machines are useful but can be dangerous.
Machines must be used with caution. Use all safety guidelines available with machines. The University of Tennessee at Martin is not responsible for the information or views expressed here.