From the "Installation" page of the Knoppix distro:
"For the bored IT workers in the audience, I present to you a good way of giving your boss a heart attack. Find your company server and boot to the Knoppix CD. Then show your boss the screen, and say, "Hey boss, you know, I was looking at Linux and decided to install it on the server. Doesn't it look really cool?" You won't do any permanent damage to the server, because Knoppix runs in RAM. Of course, THG and I take no responsibility for your actions. I disavow any knowledge of this."
Hmm...