You know you've been there. We all have. You wake up with a headache from hell, a faint recollection of the night before spent L-I-V-I-N it up at the ultimate concert or party with your friends, and the sneaking suspicion that one of your buddies captured it all on camera. You can blame your behavior on the contact high or blame your outfit on being "ironic," but somewhere there exists a photograph of you in all your shameover glory. There used to be a time in the not-so-distant past before Facebook and "tagging" photos existed, but those days are long gone, my friend, long gone. At this point everyone from employers to ex-boyfriends/girlfriends, and even your parents, uses the Internet to check in on you. Having fun is one thing, but there are certain embarrassing photos you never want tagged on Facebook. See the examples below. Don't be that guy. Or girl.

Crying in the front row, with braces, wearing a 12-year-old girl's pink snow hat. It doesn't matter how much you like the band.

Crowd surfing when the crowd can't hold you up.

Letting the world know you're desperate for a BJ (and your shirt's slogan is using apostrophes incorrectly).

Flashing a Bloods gang sign when, well, how do we put this, you're obviously not a Blood.

Anything involving camel-toe. Do you regret the leggings now?

This is not what a boss is looking for when they ask if you're motivated.

Caught wearing anything that makes your penis a not-so-subtle ad campaign.

Too drunk to smoke.

Being the only guy in the world who owns a "Bugle Boy University" jacket.

Having your co-workers find out what your tramp stamp says, let alone the fact you have a tramp stamp.

Wearing a three-wolf moon T-shirt. Let the meme die, already.

Really, you don't want your parents to know that you were that couple.

If you walked around all night with the dreaded toilet paper heel.

If that's you on top.

Being forever known as "rosebum."

Any evidence that you stalked Blink 182's tour bus across state lines.

You survived the mosh pit, but your clothes didn't.

Even if you're in the band, getting pantsed is not a good look.

If you're eating anything that's not food.