Sometimes I feel if I am going to pay for the service I have the right to refuse to answer if it's not convenient for me right at that moment. Other times I look at my caller ID and say, "Oh no. Not her!!!!" and just don't answer.
Never answer calls? Then who are all these people talking to about Aunt Matilda's appendectomy while I'm shopping? People answer when they can and what calls they want. I own my phone, my phone doesn't own me.