Magnetic collars for dogs - I received a private email from David Easton who saw my post in a dog health msg board about my older dog's arthritis problems. He promised he had something he makes himself by putting copper wires in a dog collar that would be GUARANTEED to help my dog. I told him thank you, but no. He referred me to the website which also lists a 100% guarantee PLUS shipping for the return. He persisted with emails about vets promoting the collar, his supposed MIT education and that he is of a rocket scientist mentality... read full review »