my dentist, as perhaps you will remember from my previous visits, is insane. In a nice way, but he's definitely insane. He flits around between patients, and talks non-stop while he's working on me, explaining exactly what he's doing and insisting that I watch in the little mirror. "You see that orange spot there, that's decay. That's what the bacteria do to you... I'm using the white filling material on this one, it's got little bits of silicone in it, but it doesn't last as long as the silver stuff..."

Sometimes I think I'd be better off without knowing.