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There was a creepypasta on youtube called"Username:666,"a creepypasta user that if you type 666 in the search bar,it doesn't have any results for it,then you have to reload many times then youtube is turning red and bloody.When that happens it shows a blood and gory video(But its nothing realistic its just cheap editing),but while its happening,its downloading a virus to your computer,then later a pop up window shows up with nothing.If you click the blank button or exit it,you are trapped watching the video,You can't close it,you can't go to another page,you can't use task manager to close it,you can't power off your computer manualy,you can't do anything but watch it.At the end of the video a bloody hand shows up and i think a bluescreen shows up.I'm not sure if its still out there because there was a footage someone made about it using an old computer and youtube in 2006. BUT thats not really what i'm talking about,there was an inspiration from that on scratch,but its not scary...That user was @UnKnOwN666_.Inspired from that thinking he/she/it can do it too...Nope...It will never happen...