I use Google all the time, but never the "I'm Feeling Lucky" function unless someone tips me off about using it because somebody somewhere has been having a larf...
Here's a good one - type "Weapons of Mass Destruction" then hit the lucky button and carefully read the "error message".
It's very funny - although it took me a while to clock it - beasue the layout is so similar to a usual 404 my mind didn't actually see what was on the screen until I really looked at it...
In case this has moved, you can also see what the screen looked like here.
