Wipeout, Leadership edition

I don't know if you've had the opportunity to watch ABC's show, "Wipeout" If not, never fear, I inserted a video of it for you to watch. If you need a good laugh at someone else's expense, then watch this.

Watching this show reminds of some leaders I've come across in my travels. They go charging into a situation, all motivated and ready to get the big win. Only to get knocked down by the unseen obstacle. Of course watching contestants do it on a T.V. show is funny, watching leaders do it in real life, not so much. 

Have you witnessed a leader get knocked down by unseen obstacles?