Watson looks up from filling a syringe to see that, his expression softening for a moment. His hands on Max's skin are gentle, even through the rubber gloves he's taken a moment to put on. "One moment," he murmurs, reassuring, before giving him a shot of anaesthetic. "There. We'll give that a moment."

He threads a needle, with steady and practised hands. "You shouldn't feel too much, but if it becomes uncomfortable, let me know. If we're replacing one scar with another, I'll do my best to make it a presentable one."

And Watson sets himself to work, with all his quiet focus.