So, today a bloke is gonna jump out of a balloon and will be the first person to break the sound barrier (in a not-in-a-plane way).

http://www.bbc.co.uk/news/science-environment-19860249

I'm hoping for something dramatic to happen. One of these will do.

1) He explodes
2) He's transported to another dimension
3) He instantly reverses direction
4) He teleports
5) He instantly de-evolves and becomes a human ancestor