I had a philosophy tutor
who used to accidentally snap chalk when he got overexcited about metaphysics. It would ping off into unexpected corners of the classroom and scare him.
(
Dr Phil Kitten,
Tue 8 Oct 2002, 22:01,
archived)
that story
is perfect in every respect.
(
freshlegs,
Tue 8 Oct 2002, 22:04,
archived)