Max Brooks

Any survival guide will tell you, don't buy a pair of combat boots before any disaster. They'll tear your feet up. Or water - don't bring water with you because it'll tire you out and you'll lose too much fluid. Bring a water pump.

The thing about dancing - what it taught me all those years - is it gives you an amazing sense of discipline in forcing yourself to do things that you know are good for you but you don't really want to do.