Interesting. I tried a Dazer when they first came out and the dogs where I was living at the time (upstate New York) were not impressed ... I don't have to worry much now because where I live there is a leash law that is pretty strictly enforced and the ones animal control don't pick up right away end up on someone's dinner table. I'm doing a bike ride this summer the length of the Mississippi starting in New Orleans and I think it might be wise to bring the air horn (alas, I use a seat-post pump, which makes it less handy as a deadly weapon). Let us know if your new Dazer works - it is easier to work with than an air horn and I'm willing to give it another try if you know how to get one that works.