I set my ringtones to various rings.
My favorites list, the one I would answer any time, any where, is one.
My general contact list of businesses and doctors, and casual acquaintances, get another.
Everyone else gets Verizon’s annoying default ringtone that I know I can ignore anytime and any where.
Yeah, it took some time to set the ringtones, but hey, what else are you going to do in a doctor’s waiting room waiting for your 5 minutes with him?
Chat up the hot chick next to you and hear about all her STDs?