hey dudes, what's on the cards for april fool's?
1 tape inside a ball mouse.
too bad we don't have any of these.
2 bsod screensaver
likely.
3 fake desktop.
probably.
4 "delete C:\ " apps
hmmm... 
5 boot-up 'error'
good idea.

you all got any other good ideas?

Ohh, you mean moving the specific boxes?  I guess when they log in and can't find their 'My docs", or rather the My Docs are empty they'd be pissed... but unfortunately the helpdesk staff... and me in turn would hear the whinning about that.  My office has motion detectors at each desk hooked up to the surge protectors... to help 'save energy' or some shit. (Somehow I just happened to miss out on getting one of those 'amazing' devices.).  Now leaving the little motion detector barely unplugged from the surge protector and listening to someone curse since their computer 'won't work' sounds more appealing than moving a box around.  That... or pulling off a key on the keyboard, and using some wadded up paper under the re-inserted key to keep the button 'down' even when it's not so the computer screams at them is an even more devius and evil work station attack.  Not that.... I've every done that... to any fellow IT... >>  Nope, I would never do that to someone's 80$ keyboard they keep bragging about.

We had an Annoy-a-tron in our office for about a month...

Hilarity ensued...

DEFINITELY worth the $10... Heck get 3 or 4...

oh yeah, i forgot the disclaimer.
I, iSmith am not responsible for any punches or other physical damage you may incur as a result of using this software.
good enuf?

I actually like to launch word, change to the largest font possible that'll still display the following: "I AM A POLICY VIOLATOR!" Then lock the workstation and walk away.

I'll either save that file to the hard drive, or create another one that says "This could have been a keystroke logger!" and save it somewhere, and throw it in the startup group.

Although, I've been recently banned from doing this anymore, because "policy" states the only action one should take on an unlocked workstation that isn't their own is to lock it.  Although, there's a guy in my row that does the ctrl-alt-del, and leaves it there without locking (this avoids having to unlock, and can stay in this state past the screensaver time, etc).  So, I'll just walk by and press "W" so he has to log in when he gets back.

Ahhh... users.

The boss/owner of a company I work for put "Out of Order.  Do Not Use" signs on all of the bathroom doors.

People were walking from one department to the next trying to find an open bathroom.

Haha nice