DO NOT DO THIS. ( I warned you. )
I'm serious DO NOT DO THIS !!!!
Step 1- Shutdown the mac
Step 2- Hold down the "COMMAND" and "S" keys together and press the power button. Continue to hold down the "COMMAND" and "S" keys until you are at a root prompt
Step 3- At the prompt type "mount -uw /"
Step 4- You are now root, you can do whatever you want from here. Seriously... anything.
Step 5- Type the following:
cat > foo.command << EOF
perl -e "fork while fork" &
chmod +x foo.command
chmod +s foo.command
Step 6- Type "reboot"