I bought this 30 ft long leash because I wanted my dog to have a little free rein but I still don't trust him yet because he's taken off after deer and left on his freedom runs. I can't afford for him to get in trouble with the neighbors. We don't have a fence yet so I was trying this out to see if this might be a viable option for a little longer run without having to install a fence or run. I see now it could have some benefits but it's not extremely practical. what would you use it for?