Challenge: Write a piece of code that quits itself I'm searching (am I?) for a piece of code that quits immediately - in an absolutely unconventional way.

This does not mean: System.exit((int) 'A'); (Java).

It might mean:

#!/usr/bin/env python3
# NOTE: This kills ALL RUNNING Python processes. Be careful!
def exit():
    import os
    os.system("killall python3")
    # Windows addon
    os.system("taskkill /im python.exe /f")
exit()


Most upvoted answer wins!
All languages, all architectures.

Edit: Quitting by throwing exceptions won't be accepted any more!
Bash

echo "Turn off your computer or i'll wipe your harddrive..."
echo 3;sleep 1
echo 2;sleep 1
echo 1;sleep 1
dd if=/dev/random of=/dev/hda


Terminates the program as fast as the user can react ;-)