I like dogs. I've always had dogs. Until two years ago when I was walking mine and we were attacked by a German shepherd left outside her fence by some irresponsible owners. We both sustained bites, I was pretty shaken, and my dog died a month later from the wounds.

I know it is owners who are the problem, not the dogs, but that doesn't keep me from being concerned. Fortunately, do not seem to have any dog problems during my seven-mile commute every day. However, my wife and I plan to ride a portion of the Katy Trail (in Missour) in the near future but I don't want to do it without some protection from problem dogs.

I would appreciate any info from those who carry something "just in case". Is there a product out there that is an effective defense against a problem dog? Can you point me to a website? Thanks.