Cone Concoctions

After walking my morning mile, I lunged Gabbrielle.  She started out great, but then got bored and started bolting and pulling my arm out of its socket.  My husband wants to buy me a round pen so that she can't do that, but I want her to just learn to be light on the rope and only change gaits when I say so.  It's going to take a lot of corrections and praise at this point to get her to that goal