Only nerds will get it

sudo (super user do), generally pronounced IPA: /ˈsuːduː/,[1] is a program for Unix-like computer operating systems that allows users to run programs securely with the security privileges of another user (normally the superuser).

Somewhat amusing.

Methinks I might print it off - in my COmputing room we've got a noticeboard dedicated solely to amusing cartoons relating to Computing and the like. It took me quite a while to persuade both teachers to allow it, but now we have it, and I think I'll make some more use of it.