I worked at summer school last year in Brighton and a dozen of them spent over 100 quid in the Queens Rd shop. Summerschools are massive and they loved getting something from the local team.
There was a program on C4 a few years ago about how much people can drink and pass the breathalyzer test. One guy had 5 pints and was ok, another woman had 6+ Bacardi and cokes and was ok, then a young girl had 1 glass and was over the limit. Not very clear is it.