Running Into People

In the past 24 hours I have run into two people from my college. One on the bus and another in the bookstore. The people that I run into are so random it blows my mind. The last time that I probably thought of them was most likely the last time that I saw them. Chicago seems like a big enough city that I would not just happen to run into someone who lives 30 miles away on a random bus that I don't usually take. Although it is a big city I guess thats why they say that it's a small world.