The Office of Terror

You run into the next room getting farther away from the copying machine. After running down the hall and into the next room, you catch your breath and examine the room. This room is the floor your on's lounge. There's a sofa, a fridge, and a coffee machine. You know something is in this building, and you're going to need energy just to escape the building. You see the coffee jug half full. You need the energy but you don't know if the coffee's old or gone bad. What should you do?