It's very common to let cats walk freely outside. It's actually a bit of a problem: http://www.nytimes.com/2013/01/30/science/that-cuddly-kitty-of-yours-is-a-ki

It's very common to let cats walk freely outside. It's actually a bit of a problem: http://www.nytimes.com/2013/01/30/science/that-cuddly-kitty-of-yours-is-a-killer.html http://www.nytimes.com/2013/01/30/science/that-cuddly-kitty-...