Posted on 25th May 2011 @ 5:34 PM

When it comes to goofy-looking ergonomic chairs, the ball chair is king. Good for the core, beneficial to posture … sillier in practice than sitting on a live dog. But perhaps the biggest drawback to the ball chair is how easy it is to fall off it. In front of people you'd like to impress -- for instance, your boss or the person who controls the supply closet. Here are five of our favorite ball chair accidents.

5. Enthusiasm Is Not Your Friend

This video is all of three seconds long, and in that time manages to prove that the ball chair requires a certain amount of care on the part of the user. You would not, for example, throw yourself down on it. Unless your goal is to propel yourself into a cube wall and then out the window.

4. The Ball Is Not a Toy

Maybe one of the hardest things about switching to a ball chair is that it looks like a toy. We're pretty sure our office wouldn't last a week before people started throwing them over the cubicle walls like  beach balls at a college graduation. Worse: someone is bound to stand on one, eventually. And briefly.

3. Look Ma, No Hands! (Or Feet.)

Ball chair devotees swear that once you're used to using them, ball chairs are as easy as regular chairs. But part of getting used to them is learning to hold onto something. Or learning to love the floor.

2. No One Wants to Be the Person Who Pops the Chair

To be fair, this guy pretty much admitted that he punched a hole in his chair. But he still looks shocked when it pops. Imagine a faulty ball chair going WHOOSH! in the middle of a meeting. You'd really never be able to eat lunch in front of your coworkers again.

1. Cloudy With a Chance of Ball Chair Accident

[Click here to view the video.]

Pity the wacky weatherman. No matter how nicely he dresses, he's the guy on the news team expected to tell corny jokes, use silly props, and fall off the ball chair. Which wouldn't look so bad if one of the anchors hadn't just sat on one without incident.