Practical Joke

I'm sure this isn't new, but I just thought of a practical joke that would be pretty fun to do to a friend who uses their computer a lot. You know the type, a "power user" who's got lots of shortcuts on their desktop and in their quicklaunch bar...

Step 1: Take a screenshot of their desktop
Step 2: Drag all shortcuts and icons into a dummy folder off in a corner somewhere, including clearing out the quicklaunch bar.
Step 3: Set the screenshot as the Desktop background
Step 4: Hide and watch!