What's scarier? His weird ranting, the laughing or Limp Bizkit looping for 10 minutes?
The best bit is right at the end where his laughter makes grown men's hair turn white, leaving their reflections forever scorched onto a nearby wall and children soil their underwear 3 miles away.
If they get to me - Mother, I love you.
Hold on, there's someone coming to the door!
"Come in!"
"Stress test? Oooh yes please!"
*dies of mysterious death*
[Edit] The mysterious Scientologists got to Youtube and mesmerised the clip from them using the power of aliens, so I replaced it with this one. Bettr, I think.