Back in Hecht’s lab, a new volunteer named Coda runs through his tests. (Coincidentally, he’s also a Boston terrier.) For one task, McCuistion places a treat on the floor, says, “No! Don’t take it!” and then closes her eyes. Dogs know what eyes closed means, so at this point, most snatch the treat. Not Coda. As his owner points out, he’s always a very good boy. He sneaks a look at it, licks his lips, then stares glumly into space, waiting, deferring, and avoiding conflict, as is his dogly destiny.