I remember someone asking a while back if the "ab-tronic" belts worked. I responded with at least two solid reasons why it wouldn't: the need for diet, no real resitance so no results, and some more stuff that I don't recall at the moment.
Anyway, this guy argued with me for a good ten or twelve posts. He was basically saying that since I'd never tried it, how can I say it doesn't work?
Some people are so desparate to lose weight that they will believe anything, even when presented with logical arguements why quick fixes don't work. So I gave up. Told him to go ahead and blow his money on is little machine and see what happens. Never heard a word again.
It just goes to show me that we never learn, except how to eat more. I can't wait to see what the next gadget is.