"Just a few things," Havelock says, and turns to face her, leaning sideways against the bar.

"Firstly, I will teach you with real knives, not blunted ones. Because of this, I ask you not to practise unsupervised until I say you are ready. That should not take long, but will hopefully limit the damage to bystanders, and also yourself."

He pauses to see how this goes down.