Should you disarm the axe-murderer before torniqueting limbs?

So, this morning I packed my son off to Dartmoor for a practice hike and camp for the Ten Tors Challenge. I double-checked his rucksack, his rations, his waterproofs and overnight kit.  And felt a huge wave of nostalgia wash over me at the sight of him, in his girt big walking boots and gaiters.
James and I don't share much in the way of common pursuits.  Outside school, he lives for sport and gaming. He's a sociable animal on the whole.  Whereas, at his age, I spent the majori...