Sled Dog Training

My neighbor bought a scooter and harness so she could exercise her dog more. This is really tempting because I just can't exercise my dog as much as she needs. If I were a jogger, that would be perfect for her, but I'm not. My only concern is whether or not Sally will pull the scooter out from under me if she goes crazy when another dog goes by! i won't be investing any time soon, but I'll keep thinking about it, and if I see a scooter at a garage sale I might consider it.