So your wife comes back from a quest to make your life 5,000 times better than it is and instead of bringing you the thing she brings you something that will do exactly what you thing the thing will do.

And what do you do instead of thanking her?

You take the thing that she brought back from her, cast the spell on her to make her blindly do your bidding. 

But wait there's more!!

Call now and the spell will end up being cast on all of the citizens in your kingdom, plus Snow White and Prince Charming!!!

Who cares about the fact that a little bit of sand wouldn't be enough? That is something that we don't need to explain because it's magic!!!!!