RELIGIONS of the WORLD:
TAOISM: S*** Happens!
HINDUISM: This s*** happened before.
CONFUSCIANISM: Confuscius say: "S*** happens."
BUDDHISM: If s*** happens, it really isn't s***!
ZEN: What is the sound of s*** happening?
ISLAM: If s*** happens, it is the Will of Allah
JEHOVAH'S WITNESS: Knock, knock. "S*** happens!"
ATHEISM: There is no s***!
AGNOSTICISM: I don't know whether s*** happens.
PROTESTANTISM: S*** won't happen if I work harder.
CATHOLICISM: If s*** happens, I deserve it.
JUDAISM: Why does s*** always happen to us?
Of course, there is one unprinted religion/philosophy that didn't quite make it, but should've:
HUDSONISM: "This s*** can't be happening, man! It can't be happening!"