Their chosen friend can either accept a small amount of money or they could win what they manage to collect in game but their friend has to decide how well they think their friend did on show. So basically if they are both poor they take small amount offered or if they don't care about money, they just refuse amount and if their friend wins its a bonus. Its like who wants to be a millionaire but instead of being able to collect they play till they loose or win and if they win theirs no point ,if their friend just take the small offer.
Review of The Wall
