When I was going out, I had to be home by 1AM. I had to go into my parents' room and tell my mother I was home. She always looked on her alarm clock and went back to sleep. I learned to be silent as a hobbit, sneaked in, change her alarm clock to 1AM, sneak out, stumble back in to wake her up en get out. After brushing my teeth, I would of course make sure her alarm clock was back to the right time.