For those who use their iPhone 6S7 naked, have you ever had issues or concern with your wedding band causing scratches or scuffs on the phone? Of course this is something I'd imagine would happen over time if it did. I have a tungsten carbide ring and sometimes when I hear the ring rub against the side of the phone a small part of my cringes. I'm thinking it's a non issue but just wanted to survey some others.