Work Creeps

You continue to sit at the front of the restaurant, leafing through the newspaper. The noises are seemingly coming from the office and convince yourself that it is just your boss. The noises stop from the office and you don't hear any other sounds for a while so you assume you just made it all up in your head. An hour passes, so close to locking up, only about 45 minutes until you close the doors. You hear the noises again, but closer to the front of the restaurant this time. You continue to ignore the sound and call your boss to see if you can hear his phone ring, because then you know if he is in there or not. Do you...