I was over at my friends house for the night and we went to sleep around 12, in the middle of the night around 3 I heard a loud bang from downstairs and continued to hear a buzz sorta noise. I was half asleep and thought it was him so I walked out of his room and started downstairs. Halfway down the stairs I look into his kitchen and see the microwave on and "cooking" I was still sorta asleep so I walked over there and nothing was in it, but the timer was set for 3 minutes and like 30 something secrets, now I just turned around and started up the stairs the hear it open and slam shut. I never knew I could run so fast so I ran into his room and slammed the door and told him, then he just laughed and told me to shut up because he thought I was kidding... Creepy stuff...