How many stray dogs do you see vs stray cats? How many people have yard bound dogs and free roaming cats? Cats are almost always unleashed. Lets be honest, how often do you think a stray dog will jump on the hood of your car? Poop in your yard? You are stretching it when you start getting into broken bones from jumping up as it doesn't take a stray or unleashed dog to do that. Like i said, go try and wash cat pee out of you boat carpet or deoderize under your porch because they like to do their business in the soft dirt. I'd trade a poop scoop or two gladly.