Death To The Vacuum Cleaner
I've finally managed to record this remarkable phenomena for people with the Multiplayer version which fixes it:
http://uk.youtube.com/watch?v=omZE8ozyg-k
http://uk.youtube.com/watch?v=omZE8ozyg-k&fmt=6 (High def - in theory, anyway)
I'll have to try again to lock Simons in the broom cupboard...
Here's another one - this is the Vandenberg Effect. Do not watch if you're susceptible to epilepsy.
http://uk.youtube.com/watch?v=u5qUSOrDXVQ
http://uk.youtube.com/watch?v=u5qUSOrDXVQ&fmt=6
"Fear and Loathing at UNATCO". Or "People against the Vacuum Cleaner". No, wait, I got it! "Rage Against The Machine"!! :B I should now go and try to reproduce this effect myself.