As a Science teacher, I have thought these exact same things! I am not going to discount one's alternative methods, for these alternatives are precious to many on this site and that would be disrespectful. However, I too have researched the methods and reasonings for the zapper and I agree with Analog Kid. The ideas Clark portrays are not common sense nor even accurate in her explanations of the zapper. She uses words and their meanings incorrectly. At least those who are proponents, and have not had first hand experience with the zapper, be aware of such. It's no attack on you, alternative medicine, or Clark. Just more information to process in a further pursuit of knowledge.