"Ah," the Master said shortly, watching the bandages go round and round his poor hand. Even on pain medication, it seemed he disliked being corrected. "Thought you smelled... off."

And then he chuckled. "Isn't that funny, though? The 'synthetic human', accusing me of sowing misinformation. Experiments like you... you're built for deception."

So maybe his disposition still needed a little work after all.