Step 1: Get into your victims Desktop settings
1. Right click on the desktop of your victims PC. Then select properties to bring up the desktop settings.
2. Click on the desktop tab
3. Click on the 'Customise Desktop' button
Step 2: Add the dog licking video
6. copy in this link:
DONT SELECT 'LOCK DESKTOP ITEMS' - NOT YET ANYWAY!
Step 3: Set it up
8. Select 'Cover Desktop'
9. Now if you wish you can return to the desktop setting through Control Panel > Display and click that check box 'Lock desktop items' that way the victim will not be able to remove or move the pub video.
You can undo this prank by going back into Desktop settings and unchecking the checkbox next to the web page you added in.
10. Be sure to leave a water bowl and a few doggie treats on your victims desk.
11. No animals were harmed in the making of this instructable.