Oh... I have one and it still makes me bow my head in shame
When taking one of my first classes I was working with my marver for a good length of time. The head on the marver was loose and annoying the c... out of me. When finishing the bead I showed the marver to my teacher. Before I knew it, she grabbed the marver and burned her tumb badly on the very hot grafite. I felt sooo bad and still do. Sorry, Connie.
She managed to teach the rest of the class with her tumb covered in honey.
The lessons learned and now passed on;
1; Donīt show someone your hot tools, unless you are 100% sure they are not going to grab them
2; Honey on your burns will cool them down and make them heal faster.