>http://news.bbc.co.uk/1/hi/world/americas/7068549.stm
>
>What cracks me up is the last line: "An investigation into the accident is under way."
>
>I guess they must think the dog might have done it on purpose.

No, I think they must imagine that the guy had abused the dog while it was a puppy, so that they can charge the guy with puppy abuse and the dog's lawyers will need expert witnesses to prove that the owner had made the dog turn antisocial and generally the press will have a field day.