Surprise is a funny thing. We think it appears in our lives more often than it really does; if you sit down and closely examine something which takes you by surprise, more often than not you'll see that you could've seen it coming a mile away.
I'll give a few examples.
"Wow, Stephen Harper said something idiotic, right on TV!"
— He's an idiot. Idiots say idiotic things.
"Can you believe it? Britney Spears is self-destructing!"
— Being a media-whore will do that to you.
"I'm so hung over this morning! I totally didn't expect this!"
— Did you "expect" to put back seven shots of Jäger and not feel it?
"Wow, she ended up totally not being into me!"
— They never are; women are cockteases, and are out to destroy you.
"The Detroit Tigers won the American League in 2006!"
— Actually, this one was a surprise.
Anyway, the point I'm trying to make is this: if you found any of the above actually surprising, you just aren't thinking hard enough. Life is not a mystery; it just happens to be a little random at times.
...but not random enough to instill honest-to-goodness surprise in you, on a regular basis.