 I have. I don't care to go into details about it. It is one of the most troubling things you will ever see. People's personalities change. They become angry. It's not their fault. These are good and decent people. They are losing a sense of self. Who am I? What am I doing here? How do I know this person? Why am I in this place? Can you imagine waking up every day? I'm not suggesting he's that far gone. I don't think he is. I don't think he has Alzheimer's.