I'd say
other colleagues that think they know about computers because they once reinstalled Windows 98 on their brother's pc are the thorn in the side of IT staff.
( sandettie light vessel automatic New Twitter - @bollocksreally, Thu 27 May 2010, 14:54, 2 replies)

Oooh yes...
A classic example of a little knowledge being a dangerous thing! ;-)
( JamHamster My eyes, my beautiful eyes!, Thu 27 May 2010, 14:56, closed)

yes, well
there's the other side too where too many staff at my place know very little...wanting a new printer because they can't print envalopes? Oh, wait, you can *opens tray 2*
(tb2571989 dies at precisely, Thu 27 May 2010, 15:01, closed)