Hi Stitch
Sorry this is a bit of a late reply.
I may have a couple of solutions for you.
If your dog is toy motivated i would suggest that you get a small tugger toy that fits into your pocket which you could distract the dog with but obviously you would need to be facing the dog for this to work.
You could also try holding up your hands and saying stop in a firm voice. Then when the dog has stopped then praise and play. Also with this tip you would have to be facing the dog.
Hope this helps somewhat.
