I would never do such a thing, but many liars have been exposed over the last 10 years for selling fake hets. I have about 30 normals hatched out already this year. I can put a microchip in every one of them and sell them to you as Het Clowns, Pieds, Caramels, Genetic stripes and Hypos. However, that microchip doesn't make them heterozygous. I then leave town with my pocketfull of your money, and am never seen again. What does that chip do for you then? Buy hets from reputable breeders, and you shouldn't have to worry.