This so simple bash script ejects the cdrom and immediately pulls it back repeatedly, till the script is manually stopped.

while [ 1 ]
do
eject -T /dev/cdrom
sleep 10
eject -T /dev/cdrom
sleep 10
done

check it out, it can even be used as a baby rocker!

Killing obama from the command line in linux

$whoami
bush
$rm -rf /bin/laden
permission denied
$su obama
$date
05-01-2011
$pwd
/home/pakistan/abbottabad
$rm -rf /bin/laden
file permanently deleted
$echo “We got him” > potus.txt | wall