Thou Shall Not Steal Bandwidth
Microsoft learned it the hard way
Niall Kennedy took some pics from last year's Gnomedex and hosted them on Flickr under Creative Commons. Microsoft's RSS blog linked directly to one of his pics without source and Niall replaced it with a modified Goatse image!
WARNING: Explicit content! Screenshot; no Goatse for me ;-)
An apology followed: 'Apologies to readers who downloaded an earlier version of this post, which used a photograph taken by Niall Kennedy and posted on flickr.com. He did not appreciate the usage, and replaced it with a different image. I forgot to include an attribution, which I had fully intended to do, but for which I apologise to him'