"After years of training young warriors, I know the sound of someone who's trying to keep an injury hidden." he says, ears perking up to emphasize.

The sounds of the nearby plumbing had snapped him out of a brief meditation. A sink filling up with water while no other bathroom sounds followed was a pretty clear indicator of wound-tending.

Did you know that Shifu can hear really well? If he concentrated, he could probably figure out where anyone on their floor was. That's really spooky for one thing, and a great big party-killer for another.

"I do have spare bandages, actually." he adds.