I love this 2012 talk... For this reason.
People say the world as been ending ever since it started.....
Lets say its Dec, 21, 2012. And 1 out of every 100 think someone is going to happen on this day. Well, guess what something will because, people will do really freaking dumb things. They could do things like this, start a massive computer virus that could do a lot of dmg, or a ton of people by guns and hit the streets. People will do this because they want to be like, "Hey I did something really awesome/coo/famous/etc on this date in history". If you get enough people to think that like, which isn't hard with media today, well then yeah something, I dont know what will happen on that date.