I went to the store at midnight and accidentally knocked a row of Tetra Pak boxes off a shelf. They burst open, covering the floor and my shoes with milk. A guy with a European accent and a Columbia Business School sweatshirt helped me pick them up before making a joke about what I was buying: pineapple and milk? together? He asked me if I thought the block of Cabot cheddar he was holding was made with real milk and seemed skeptical when I said, “Yeah I think so.”