"We didn't realise that he didn't care"

This afternoon my wife was sitting in her doctor’s waiting room. She was reading Richard Clarke’s Against All Enemies; the only other patient, a man, was reading Ron Suskind’s book on Paul O’Neill, The Price of Loyalty. They started talking, and the man said that he was reading the book because a friend had told him to do so, saying [approximately] “I voted for Bush last time, but after reading this I could never vote for him again.” My wife asked if the book was having the same effect on him. “Yes,” he replied, “we knew that Bush wasn’t very smart, but we didn’t realise that he didn’t care.”