i remember a few years back they found one of those turtles living in the sewers under the streets of Sydney. Found an article aswell,
"It took six men and a wheelbarrow to get the turtle into a car for its return to the park - and it clawed the car's upholstery to bits during the journey."
20 years it lived there they believe, eating cats and rats. Weighed 110lbs
http://www.ananova.com/news/story/sm...sIndexHeadline