Things I've never wondered about

The latest post on Ars Mathematica starts with "If you’ve ever wondered what a spin glass was..." Now this is something I've never wondered about (if you have, follow the link to the Wikipedia entry) and, in my usual totally out of touch with reality fashion, I kept on thinking "spin the bottle" instead of "spin glass." The post was filed under "physics" so great confusion ensued - why would physicists be writing about spin the bottle? This meant that of course I had to follow the link to the referenced article - Spin Glasses for Pedestrians. After reading the abstract I've decided that it may be a very convoluted and wordy explanation of "spin the bottle" after all.