This one is kind of an annoying trick and if used unknowingly can certainly cause problems (am serious). What this trick does is, after conveying a (any) message it shuts down the computer without any confirmation. In order to create the Shutdown file, follow the below mentioned steps:
Paste the following code in it:
msg * Its time to get some rest.
shutdown -c “Error! You have to take rest! Byeeeeee” -s
Save the file with any name but with .bat extension and close it. For eg. TakeRest.bat