sitting in the back where I could see the door, I saw a fellow college aged student open the door. He didn't come in though. After a moment of looking around the big garbage can next to the door, he reached in and grabbed a "clean" popcorn bag. In those days, you could get a single refill on the bags of popcorn, but when they refilled your bag, they ripped the side out. He had found an unripped bag in the trash, which I assume he was going to go get his refill...