Osprey listens to the list attentively. "OK," he says. "Some of those I get, and others I don't. But if I do something that breaks a rule, just call out."

He rolls his shoulders as he talks, making sure he stays loose. "I'd suggest adding a few to that as well. First, stop if your opponent says 'Stop', goes limp, or taps out of a hold. Second, for today at least let's say we stop if someone draws blood. And third, please don't call me 'sir'. Are those rules all right by you?"