Slide #2
Yes, finals are hard work, at least compared to anything else your average UCLA student has had to do up to this point in life, and it's something worth celebrating when you finish. Even though frumpy-pants UCLA actually banned the Undie Run a few years back with some mess about student safety, hallowed traditions like this never die, and in fact might become somewhat better when they're also underground.
[Twitpic via @Kaylagocrazyy]