[idi banashapan]

do a screen shot of your desktop, with icons, etc. Save it, and set it to be you desktop picture. Then lock your machine and drag the "press ctrl, alt and del to log on" box down to the bottom right of the screen so it is out of sight. Hide around the corner and watch them wonder why your machine is not responding when they start clicking on icons!!!! MWAHAHAHAHAHAHA!!!!! (I have too much time on my hands!!)

Also, as mentioned above, there is a little VB thing i've used before that acts as any dialogue box, but asks if you want to delete all files on the C: Whether you click yes or no, it appears to delete your files, using the correct names as well (it actually looks like the delete box, with files going from left to right into the bin)- that will put the willies up them!!!! You can set it to start when they start another app, so if they click in IE for example, a box will appear asking them if they want to delete all files.