What do you think of a restuarant that requires exercise before you get your meal? New restuarant Steam in London does just that. Diners will drink metabolism boosting green tea and particpate in a 40 minute exercise class before the meal. During dinner, seats virbate for 30 minutes burning 50 calories while talking and laughing burn another 97. After dinner, patrons can play ping pong or use a boxing bag