I've done it before. I was 14 walking to the corner store when a pitbull mix grabbed my arm and pulled my down. I was able to get on top and punched in the face and stomach her till she let go and ran off whimpering. I was unharmed but my bubble coat was finished. I was scared shitless for a second then I got really pissed...if she didn't leg go of my arm I was going to beat the dog to death...