So I heard about this brand new craze called sporthocker or hockern or something. It's German, anyway.
Here's a video explaining it all.
When we're reduced to "extreme sitting" for a new sport, I wonder if we're really running out of ideas. Besides, I invented this about 10 years ago when I was too uncoordinated to sit down like a normal person.
Honestly though, I like the stool. I'd buy one of them for those times when you just need to sit.