In a perfect world, callers would be polite and leave a message. Received a call from this unknown caller. Didn't answer, don't know the number. No message was left. How rude! Bother me by calling my cell and then don't bother to leave a Message? Tsk tsk. My elderly father got same call. He wasn't so nice and was the typical "I want to be left alone" type of elderly man. Comical to listen to. I hope the caller gets a visit from Karma.