Maybe this is just a way to pump up the apps in the App Store after recent release of Office 365 on iOS?

So you've got a bunch of crocs running around with magnets on their heads ... why not just mount a perimeter of magnets of the opposite polarity around areas you want to protect? If the field doesn't totally disorient them, that strange pressure against their foreheads impeding their progress towards a nice Fluffy or Todo snack in your backyard might do the trick. But what do I know, I live in California, where we would spend billions researching the problem without doing shit about it. But hey, at least a sudden surge in demand for magnets would stimulate the economy! (I am not a magnet salesman).