I just returned from a short three day tour ride with a friend. We had a wonderful time with the riding and camping. One problem area for us was dealing with agressive dogs. I have tried making noise, riding faster (which is difficult going up a steep hill), squirting water from a bottle etc., etc. etc. and have found only spotty success.
Is there some type of electronic device or whistle that works? I have seen some advertised, but I would like to hear from someone that has found a good device to deter agressive dogs on the road.