Dave Chappelle is Really, Really Tired

We've mocked past celebrities for being "exhausted."

Skeletons such as Nicole Richie and Lindsay Lohan, for example, seemed to check into hospitals purely because they hadn't eaten in weeks. Or had sniffed massive amounts of coaine.

But it does appear as though Dave Chappelle actually has some physical or mental problems.

The comedian checked into to an emergency room in an undisclosed Los Angeles hospital Saturday because he was suffering from exhaustion.

According to a story in People, Chappelle was treated and released a few hours later.

"It was exhaustion; he had been traveling," his rep said. "He's fine."

This isn't the only time the comic has had health issues, however. He often ends up on his back more often than Paris Hilton beneath her latest boy toy (Tyler Atkins, as it currently stands).

In May 2005, Chappelle generated headlines when he walked out on a $50 million Comedy Central contract and abandoned his Chappelle's Show in mid-production.

As was eventually revealed, he spent two weeks in Durbin, South Africa, before returning to his farm â€" and his wife and two children â€" in Ohio. He said the escape was a "spiritual retreat," which sounds like a euphemism Jason Wahler should adopt every time he hits the bottle.

Chappelle has since resumed performing live standup; in April broke the endurance record at the Laugh Factory comedy club in Los Angeles by performing his routine for more than six hours. That's almost as long as Diddy can have sex for!