On Wed, 8 Jun 2016 23:43:45 -0500
Martin Eastburn wrote:

I taught my son how to turn and he made a few things. He being a teen
at the time was a bit aggressive in his work. One day a bowl
shattered and a chunk hit him in the face mask - at the top head
shield. So the clear was ok, but the white forehead protector
shattered.

yes there is a tendency for newcomers to try to take off too much
wood too quickly with results that vary and start at bad and go to
worse and beyond