        Still he hesitated.  Was it plausible that they could have figured out his digestive system so quickly?  As far as he knew, they hadn’t taken any tissue samples—or anything else—from him.  What tipped the scale was his memory of fixing a German lathe—using the German instructions—in the machine shop.  It didn’t really matter what language it was in; a schematic was a schematic.  There was surely enough information in Grey’s Anatomy for them to know what he should eat, and there were surely enough experts studying it.  He took a bite of the cupcake.