SAVE FOR FUTURE USE.
If you are sitting next to someone who irritates you on a plane ...
1. Quietly and calmly open up your laptop case.
2. Remove your laptop.
3. Boot it.
4. Make sure the guy who won't leave you alone can see the screen.
5. Close your eyes and tilt your head up to the sky.
6. Then hit this link: http://www.thecleverest.com/countdown.swf
My friend also notes that if you do this, you will likely never fly again.