Bingo. See also, "the drill story":

When I was in seventh grade, I took an Industrial Arts class ("woodshop"). The first few weeks of the course were spent going over safety of the machinery. In particular, I remember a heavy-handed message that Mr. Hopfer gave at the drill press:

This is a piece of industrial machinery. It is not a toy. If you put your hand on the stage and lower the bit, the machine will not jam up and make funny noises because it is too difficult. Instead, it will drill a hole through your hand. That is what makes it useful. If it didn't do that, you wouldn't be able to cut through wood.