When Galtee was attacked and almost killed by a roaming Malamute last November, I chose to be proactive and get protection for us. I bought a Vipertec Stun Gun–which I lost at the park a few weeks later. This new Vipertec that I bought recently on www.amazon.com, is smaller, lighter, easier to hold, and looks like an old cell phone; it has the same nasty buzzing sound to scare away fighting dogs and people. It also functions as a bright flash light. I prefer the on/off side button which is easier to turn on. This Vipertec Stun Gun is a great remedy against an attacking dog, and the buzzer may be enough to scare away an attacker.