http://www.google.com/search?q=pitbull+saves+from+&btnG=Search&hl=en&sa=2
Interesting.
Your search parameter yeilds 2,501,000 results.
The same engine using the parameter “pitbull attacks” yeilds 101,000 results.
Hmmmmmmmmm .....
(By the way, “Hippo attacks” yeilds 672,000.)