Note that you probably don't want your speakers loud enough for anyone else to here if your at work.
http://video.google.com/videoplay?docid=-3623576143531081352
Hahahaha. Brilliant.
I just found this one too!
http://video.google.com/videoplay?docid=5452982579545117880&pl=true
both were hilarious, nice finds!
The 2nd one isn't available :(