when you're @ skool's computer if you have winxp / nt at you skool, just go to another computer and go to Start-->Run...---> type : "CMD" then in command write "
replace the message in something like "I have sh*t" or "Fuck the system"Code:net send /domain message
and don't press enter.!!
then go to another computer and tell someone to press enter and then to click ALT + F4.
then all the computers will have pop up message that says "fuck the system" or whatever you wrote...
very l337 but nice thou