A friend of mine gave me a stun gun, more or less as a novelty. It's not the type that shoots prongs, but just has 2 stationary metal prongs that point out, and 2 that point to each other, and when triggered, the 2 pointed at each other conduct the electricity until someone is touched by it. It's 200,000 volts. Is there any risk of serious injury or harm using this on someone? I have already been hit by it, and it just kind of stung and made my arm twitch.