The Association of Convenience Stores is currently on a profile-raising US push, boasting Lance Armstrong as one of the speakers on its latest study tour. Cycling legend and cancer survivor Armstrong will presumably be drawing enlightening parallels between winning the world’s most gruelling sporting event seven times in a row after a life-threatening illness and... flogging Hershey bars to stoned kids with the munchies. Makes the Tour de France seem like a stroll in the park.