"And this is a cellular power-booster," Mr. Judy said, affectionately patting an oblong box of putty-colored high-impact plastic. "It’s wonderful! The phone companies install them in places like tunnels, where you can’t get good phone reception from your earphone. But if you know where to find one of these for yourself, then you can liberate it, and re-wire it. So now, this is our own little portable cellular phone-station. It patches right into the phone network, but it doesn’t show up on their computers at all, so there’s never any bills!"