Lots of agencies have booze on hand—Arnold in Boston even has an impatient and lonely beer vending machine that harasses employees on Twitter until they visit it. But JWT's Casa in Brazil has the most annoying agency beer fridge. It's hooked up to the shop's computers and refuses to open on Fridays until all staffers complete their weekly time sheets. "We know filling out timesheets is mandatory, but it can also be fun," says the agency. As a bonus, the beer is free—which might explain why the staff, judging by the video below, turns the place into a disco after hours. Via PSFK.