Have you ever talked to the people?

It kinda depends on how these people may react - but I would tell them that if they constantly let their dog run loose, either the city pound will pick it up, it will get killed, or someone may take the dog. Maybe you could go to their house WITHOUT the dog and mention you 'saw' her lloose on the street again?

If you choose to return the dog, I would give them warning that you have returned their dog X number of times, and the next time you see the dog loose, you will call the pound or take it to a shelter where they will have to PAY to have the dog returned to them. Letting a dog run loose in most cities is illegal.

My fear is that simply making the dog 'dissapear' does not address the problem - they'll probably get another dog someday, and treat it the same way.

laura