weird guy from the dorm

You, like everyone else, lived in a dormitory. Naturally, the dorm had many double rooms, and there was a group chat for everyone to ask questions or request things. It was Friday evening when a quiet guy, who didn't talk to anyone and seemingly lived alone in his room, wrote in the chat: "Hey guys, does anyone have a large black plastic bag and some heavy-duty duct tape?" What a strange question, you thought.