Was today the day of interrupting other people's training and he'd just missed the memo? Irritation was already building in Sasuke's expression by the time he finished with his kneecap and turned to face Sakura. He couldn't be rude, he reminded himself forcibly, not when they were leaving for a long-term mission tomorrow afternoon.

Part of him still wanted to be rude. "It's about the medical chakra, and I'm not so unskilled as to cripple myself," he said, tone clipped. There was little point explaining what the specific purpose of this exercise was to someone who appeared to assume that all types of injuries were readily available to anyone looking to train on them.

No -- that was probably uncharitable, said that particular internal voice that sounded annoyingly like his mother. Self-injury wasn't standard medic-nin training in any case.

"What do you think you could help with, if it weren't about the medical chakra?"