That's good. Keep your arms loose at first. If you're too tense to start it'll be easier for your opponent to get in a hit as you try to over-correct and defend yourself. [He demonstrates by mirroring Jimmy's stance.]

Now try again. [And still he is completely unaware of any discomfort that Jimmy may be feeling. He's in the zone, so to speak, and training to fight is no place for a ton of emotions. Not that Riddick is the best example of healthy emotional expression or anything... ]