Drugs are not for everybody, as this case illustrates so well. Not to mention the fact that the internet is not real life. This guy's tripping with his internet buddies and nobody's around when he gets out of control; can't exactly reach your hands through the monitor and grab a hold of this guy. I've been involved in several bad trips by others and when someone goes off like this, other people need to be around to bring him down, even if that just means holding him down or locking him in a room.
Hallucinogenics are not something you want to do on your own unless you've got a bit of experience with them.