I'm not sure what the difference between Parkour and suicide sometimes.  I guess the people doing it are just expecting different results.  Sometimes Parkour is known as freerunning, and sometimes its known as insane.  The video below would definitely be placed under the insane column.

For a minute it looks like he might make it, but you know I wouldn't post it if he made it.

The most amazing thing is how he walks away from it.  His head hits so hard I don't think he is going to remember his name tomorrow!

I'm not sure if it makes it hurt less or not, but at least the music makes it easier to watch.