ahaha, i found this during the beginning of the week and thought you would find it hilarious... then i started reading his comic archive and completely forgot i wanted to post it here. at least you found it somehow anyway =D
I saw this on a few blogs recently also. Great comic archive, as Andy also mentioned.
On a serious note though, for all you geeks that understand what sudo is and does, lock it down pretty well. Somebody could do a:
#sudo su -
and have full root access, if you are not careful.