How to shutdown/restart peoples computer that's on the same LAN

Why not shutdown the computer of the enemy that's about to win on your current LAN game? And while you are the winner, he's a bad loser ;)

This is how you do:
Start Command Prompt and paste this command: net localgroup

Check out the name of his computer and then paste this in Command Prompt:
shutdown -s -m computername -t 15 -c "Windows need to restart, you fool" –f

Hit Enter and wait ;););)

This can be done on all users in your same LAN at anywhere. Enjoy