Unprotected Sex!

The odds that a Pregnancy will result from a Single Act of Unprotected Sex are approximately 1 in 25 (0.04%)

Don't let this be YOUR future child...

Whoa, kids. I know what you're thinking. Hot shit! I can have unprotected sex twenty-four times scott-free before I even have to worry!

Well, sorry to burst your idiot bubble but if you think that then
1) you suck ass at math and have no idea how probability works
2) you should start thinking of names for the idiot child you're about to have (I'ma call him Biff)

For the rest of you, let's break this down.

Basically this is an issue of timing. Now, full disclosure: I'm not a scientist but I have it on good authority that boys have penises and girls have vaginas. Now, to make babies... I don't know, but a woman can only get pregnant on approximately 2 days in every 28 of their cycle. But then she also needs a dude's spermatazoa to eat the egg or whatever and those little fuckers can only survive for around 2 days once in her stomach. This gives us odds of jot, scratch, erase = 11%!

But even if these two windows do happen to overlap after your shitty Junior Prom in the back of that shitty Pinto, there's some good news: Sometimes the spermatazoa don't always eat the eggs! In fact, when together they only do their thing 1/2 to 1/4 of the time they're all chilling. This drops the odds down to between 3-5% that you'll have to explain to your son (Biff) that he was the result of a drunken irresponsible and horribly awkward night for everyone.

Seriously though, 3-5% is a lot. Like 85% odds in the first year if you keep at it, but whatever, it's your life to roll the dice with. Consider yourself warned so don't bitch to me when you're rail-roaded into marrying said girl you brought to J-Prom who now resents you cause you got her preggers (and you didnt't even wanna go with her!) and then have an idiot son named Biff who sucks at math. Good luck with that though.

(http://wiki.answers.com/Q/What_are_the_odds_of_getting_pregnant_if_you_had_sex_only_one_time)

Heart Attack!

The lifetime odds that you will die as the result of
Heart Disease/Heart Attack are approximately 1 in 5 (20%)

Ha! I bet you though that was a stroke patient but it's former Vice President Dick Cheney with his signature scowl. I was originally going to use him for the statistic on 'Accidentally Getting Shot in the Face' but seeing as he's the record holder for most heart attacks this works too.

So...good news - This is the most common cause of death, meaning every other conceivable way you could die is less likely. Celebrate by smoking, eating terrible food, and not exercising!

Not so good news - After his fifth heart explosion, Cheney had a pump installed to circulate blood for him and now has NO pulse. I shit you not, the dude's part robot which means we all have to go back to the drawing board and figure out how to stop him for good. Decapitation seems the best bet but this is Cheney so no promises it will work.

(http://www.livescience.com/environment/050106_odds_of_dying.html)

Hermaphrodites!

The odds that a pregnancy will result in the birth of a Hermaphrodite are approximately 1 in 250,000 (0.0004%)

Now, I'm not gonna go out on a limb and say that Lady Gaga is a Hermaphrodite, thats for you, and bookies, and her traumatized boyfriend to discuss. Not that I'm above that or anything, I just prefer dealing with facts and quantifiable data...With that said, Lady Gaga is mentally retarded. And the creative director for The Muppets dresses her.

(This number may be off, my figure is from the NIH and cited in this book - http://www.amazon.com/Odds-R-Roger-Schlaifer/dp/0553383469, most internet answers seemed far too high)