There are some phenomena that are surprisingly reoccuring. Here are a few I've noticed. - There will always be a crying baby on the train/plane/bus. Always. - If you rent a car, the last person to drive it apparently was 4'9, and needed to have their chest up against the wheel. -The great hairtie mystery - Similar to hairtie mystery, I have a pile of socks that will never belong to a pair. I can't be alone in this. Any others?