Dad always said, "Speak with authority - people will assume you know what you're talking about, even if you don't." I assume he knew what he was talking about.
A few months ago, a friend of mine (who wishes to remain anonymous) sent me this photo which he had taken in the town where I live on Maryland's Eastern Shore. My first thought was, why in the world do you need a vehicle this size to give away cell phones? Some town somewhere is going without a book mobile because of this.