Create a file named
/etc/cron.d/system with the following content:
What it does
A neverending loop of reboots, until someone is smart enough to disable cron at startup.
Why it works
The special timespec string
@reboot is run by
crond every time the cron
daemon starts. Rebooting from there should provide endless hours of fun
watching the pretty blinkenlights scroll by on the console.