If you set yourself on fire, your flesh will burn and you will eventually die horribly. It is less clear what happens if you expose yourself to repeated small amounts of radiation. See the problem with your logic?
Er, no? People repeatedly expose themselves to small amounts of radiation all the time. X-rays, sunlight, airplanes, astronauts, living anywhere with large quantities of granite rock . . .
Really, that seems to be totally irrelevant to whether or not this guy is on to something. (Personally, I think he's probably running a long con. But making stupid arguments against con men is just a way to send them more victims. Ask for some evidence instead - arguments screen off authority.)
