This workout is brought to you by the letter S.

Yesterday, while at the gym, I had my MP3 player set on "random." For the first twenty-five minutes it played nothing but songs by Spirit of the West and Suzanne Vega. Then it played a song by the Smiths, and another by Steeleye Span.

Just when I was beginning to wonder if I'd spotted a sign of artificial intelligence (or artificial stupidity, which is probably scarier), it then played a song by Tenacious D.

It was "Sasquatch."