'''Text and email are polite invitations to a conversation. They happen at the speed and leisure of both the sender and the receiver. In stark contrast, when you get a phone call, it’s almost always a convenient time for the caller and a bad time for the recipient, who I refer to as the “victim” because I insist on accuracy. My philosophy is that every phone conversation has a loser.'''

-- Scott Adams, the creator of Dilbert comic strip http://blog.dilbert.com/2010/09/03/phone/