Well, the big problem there is the yod, vav, and nun, when roughly inscribed, all pretty much look like squiggly lines. And vice versa. But what he reads an a yod could just as easily be a zayin, which would give us zonah, meaning "prostitute"! And since "everybody knows" that Mary Magdalene was a prostitute (in the same way "everybody knows" she was married to Jesus), this is proof positive that this really is the Jesus family tomb!!!
There. Mystery solved. Do I get a TV show now?