Another job, another drink

I have recently started a new temporary assignment that I got the job through the same project manager I worked with last year: Business Analist at ABN AMRO, working on a project that is part of the break-up of Holland's erstwhile largest bank. The bank is a social place with many a social heart. Periodically an evening of drink and merriness is held in one of Amsterdam's many pubs. One persons pays the bill at a certain time and emails all present what the tally was as well as the prices of the drinks. People then have to pay for wat they have drunk and round off the total upwards. The excess money that is thus collected, is given to charity. What could be better than getting drunk and helping a worthwhile charity at the same time??