Here is an annoying joke to use on your roommates during the next blackout. Every time you walk into a room, hit the light switch and say, "Hey, I think we need a new light bulb in here." Flick the switch a couple more times and then say, "Yep. It's definitely out." It gets old fast, but for you, it will be hilarious. I was even doing it when my roommates weren't around. It was still a hoot.