"Human is ideal, given the capacity for thought and range of emotions that most animals don't have," he confesses. "Monkey would be the best. Rat, actually, wouldn't be too bad, either," he admits, "but they're extremely small and I've already exhausted a good deal of my supply of them."

Rat snacks shouldn't be a thing, yet he's down to only three of them after emergency's struck, but meta-cognition is a very powerful thing and the rats have it, which helps with keeping Major sane.