[FirstYorkie]

I agree with the others that this should be reported to animal control.

The most important thing is to try to not be out when this dog is running loose. You may not be able to protect yourself and your pup next time!

Two ideas that I have read about - 1) carrying a can of compressed air (like is sold for cleaning cameras and keyboards). There's nothing in it that will harm either dog but I'm told that sound of it will usually frighten away other dogs. 2) make a helicopter out of your end of your pups leash (or carry a second one for this purpose). Swing it around and around over your dog's head so that it will hit the bigger dog if he approaches.

I would think that you could also use a walking stick. You'd be perfectly within your rights to give him a whack if he charges your little one.

I've also read that some owner's have been known to carry a pocketful of treats. As big dog approaches, they throw them. As big dog stops to eat them, you have time to escape. I'm not sure that I'd rely on this one, but it might be worth a try.