Never counted, but one of my trips to Montreal was pretty bad. We started (four of us) at 10:00 AM and drank non-stop 'till about midnight. We went through about five cases (bottles, not cans). To keep it cold, we filled a hotel bathtub with ice and used that as our cooler. Then when we went out, we filled our coat pockets with beers. On top of that, there were all the beers we drank in the bars. One of my friends eventually passed out in his own vomit. I took a breathalyzer in a strip bar (for fun) and was four times the legal limit. It was ok though because I wasn't driving.