I dispute with my friends

Thankfully air-con has spluttered into life this afternoon, as a result I have stopped perspiring. Lunch was a walk to the 'Alldays' supermarket for some water and an ice cream. Tried to get an explanation from Michael, the manager here, as to why beer was so expensive in a bar / restaurant (> $5 for a can of TsingTao) compared to the shops (< 50 cents for the same can); no resonable explanation given.