"He does smile. Only when he's being cruel, of course...what would you expect from a man like him?", he asked softly, keeping his tone hushed since they'd gotten in trouble the last time for 'slandering' the man. "You wouldn't want to see it anyways. It's less of a smile, more of a baring of teeth really. Still gives me nightmares if I think too much on it."
He frowned at the other's warning, but forced himself to nod along anyways. The other knew how to read their Master the best, it'd be more than foolish to not trust him. Besides, the last slave caught stealing did end up missing a hand. The Doctor wasn't quite sure he could grow a new one and he wasn't really all too keen on trying. "He's always in a mood.", he murmured as he finished up with the bandages, ruffling the other's hair gently when he was set. "I wonder what's brought it on this time. He's used to your jokes, it couldn't be that alone."
He shrugged at the thanks, handing the other a spare tunic from the cupboard. Probably the last one he'd had that wasn't torn to shreds from the whip. "You always watch out for me...it's the least that I can do.", he shrugged, unable to help but feel a bit awkward. He never really knew what to say when the other thanked him. It'd been far too long since he'd heard those words. "Just please, go a little easy on yourself until those close up, alright?" He didn't want to lose the only friend he had here.