Happy birthday! And thanks for the giveaway.

I'm gonna say you ordered some games from steam(or any dd site) and it glitched and gave you free stuff.

Or you bought a gift card, and well same thing happened.

You found a bunch of money had been transferred into your bank account?

You bought something in retail and found something extraordinary in it.

You beat Vladimir Putin at arm wrestling.

your pet gave birth to a two-headed one?
wut? \o/

LucasArts emailed you DirectDownload, DRM-free copies of all their adventure games?

Someone famous photobombed your photo?

You have been recruited by the Star League to defend the Frontier against Xur and the Ko-dan Armada.

You found a potato in your chips!

Did you get married ? Or proposed (engaged) ?

Thank you for the giveaway, and of course, happy birthday! :-)

You found a Frito in a bag of Doritos?

One of your enemies has died a horrible death !

Some government institution sent you a latter that you are dead.

Your cake had a cake in it!