Running is easy, right? Right leg, left leg ... and repeat! NO! STOP THAT RIGHT NOW!! There are a set of rules – unwritten until now – that require careful adherence. Should you flout these rules, you will get leg-humped by a Rottweiler on your next run while being get chafed under the armpits by your new cotton t-shirt and having to fling your boobs over your shoulder. Read on ....