The single best feature of my iPhone is the setting that blocks incoming calls from ringing if they're not in the directory. I don't like that I have to add a number if I'm expecting a call, but it's done wonders for my already frighteningly tenuous grip on sanity... and I tell people to text me first, then I can easily add their number. I had a buddy who had an app on his phone that could spoof his call to me, and make the ID on the display match a valid number in my directory. It was the only case where that happened to me, and fortunatly, never grew into a "thing"... I also have no qualms about saying whatever I want to a scammer. They're the criminals and they know it, I have no obligation to be polite.
