I have a nightmare.   I’m sitting at the Antiques Roadshow and in my hand, I have a small vase. The vase is narrow, with two tiny handles on the sides, and a hallmark underneath that I suspect means it’s worth something.   I’m horribly nervous. The more nervous I get, the more I fidget. Finally, the vase expert is almost ready to see me. He tells me he’ll be over shortly. I’m picking up the vase, wondering at its value. I’m turning it, turning it until...   ... one of the little handles snaps