I'm another one with a fear of dogs -- my camino walking partner says it must come from the bad bite I received at the age of 5. In fact, for my first Camino, I brought one of those dog dazer things but tossed it because it was so obviously not needed. I will be walking the Camino Ingles in a couple of weeks, and I was curious to read Gareth's suggestions for how to deal with a problem if it arises, because I've been told the opposite. I have been told to avoid eye contact completely and to back away slowly and without moving the stick.
On the way to Finisterre, about 2 km outside Oliveiroa, there is a walled compound that has very imposing gates. On my way past, the gates were open, and two huge German Shephards came lunging out at me, teeth bared and all that. I was pretty scared, but at that very moment a car drove by, stopped and picked me up and carried me 200 m or so. Later at the albergue, a woman arrived who had been bitten by those dogs. She had taken the approach of trying to show them "who's the boss" by staring them down and forging ahead. I don't know whether they would have bitten me if the car hadn't arrived, but it seems like the forceful approach didn't work in this case.
I'm hoping that with the increased traffic on these secondary caminos, dogs will be tied up, but if others have suggestions, they'd be welcome. Thanks, Laurie