Some people study the most interesting things

They got data, but no mechanism to explain why the shape of the glass affects the speed at which people drink beer, but it does!  They think it's perceptional where you think more is left than really is and this is open to experimental testing by constructing beer glasses that create different perceptions of when the glass is half empty or half full.  Oh, did they control for optimists and pessimists?  Hope they kept the beer variety being comsumed constant because as all of us know, different beers are served in different glasses in different parts of the world.  And further TPP wants to see their research budget.  Item 1: buy a round for the house; Item 2: buy a round for the house;  etc.  HT to PLOS Blog.