"I think I would first try the pepper spray and hope for some good cross-contamination to the owners."
If the dog was a housedog, or if they had to transport it in the car, I would do it. As it is, they would just shrug and walk away, because the comfort of the dog doesn't matter to them.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.