Hands-free dog leashes are safe when used properly with dogs that are leash-trained to walk or run by your side without pulling. For dogs that pull on the leash or lunge after other dogs or bike riders, a hands-free leash may not be the best option. It’s possible for the human to be yanked off his or her feet by a dog pulling hard on a hands-free leash. Some hands-free leashes come with quick-release features that allow you to unhook your dog quickly if necessary. Some also come with fixed handles you can grab quickly to get better control of your dog.