This YouTube video is about Toby the dog and Sheila the duck who adopted him at the Mac Kenzie farm. The video, first spotted at Cute Overload, has gone viral because of the sheer WTF-ishness of it (is that a word? No? It should be!).
The video is subtitled in Spanish, but you really don't need to speak a whit of Spanish to understand what happened. And be prepared to be amazed: Hit play or go to Link [YouTube]Update 11/24/08 - It's a viral ad by an Argentinian ISP called Arnet - Thanks Demian!