I use a Kong retractable leash for chunky when we go on his bathroom walk so that I don't have to walk into the grass with him. I can stand on the sidewalk while he jumps into the overgrown grass to poop. I haven't had any issues with it but I am never in a situation with him where I need to have that much control of him. I have a regular leash also and can lock the retractable shorter than I can it.