Oooh, Crap Little Monkey reminded me...
... of a Craft and Design class many years ago (long enough ago that us O-grade CDT pupils were allowed to use the bandsaw with minimal supervision).

Our techy teacher had a severely bandaged hand. "What did you do to your hand?" we asked.

Well. Said teacher had been explaining safety with planes (the kind used for shaping wood) when you're sharpening them. Since the blade is at an angle, you can run your hand from the back to the front of the plane and your fingers will just slide over the back of the (very sharp) blade harmlessly. "It's like stroking a cat," he said, "if you stroke it the right way, it's fine, if you stroke it the wrong way it'll bite you." All the while running his hand from the back of the blade to the front.

"Please sir," some smartarse pipes up (not me, I'll hasten to add), "My cat likes being stroked the wrong way!"

"What, your cat likes being stroked like this?" as he goes from front to back. The moment of realisation came just after the message from his fingertips...
(gordonjcp, Thu 20 Dec 2007, 16:50, Reply)