Shutdown your computer clicking on 'my computer' icon

• right click on desktop and make a shortcut
• After it is opened, Copy this code to it and press enter    shutdown -s -t 0
• Type my computer and press enter. (actually you can type anything in it)
• Right click on the created icon, go to properties.
• Now select 'change icon' in shortcut tab
• Now select the icon which is same to my computer icon
• Then press apply and ok
• Now delete your real my computer icon, place the fake one in desktop.
• Now you can fool your friends................! whenever they open it, computer will be shutdown.

* Use this code to restart your computer   shutdown -r -t 0
* Use this code to logoff your computer    shutdown -l -t 0
* Change the number, with what ever you want. It is the waiting time before shutdown.   
ex-  shutdown -s -t 15