One pleasant evening I was holding Grandpa's hand and taking a walk in the park. "Where are the peanuts? Give me now!" He suddenly said. How I wished I had some with me! "Oh, my little Tom, the monkeys are taking long to come out today. Wait till they smell the peanuts." I knew he was lost in one of his memories again. I remembered the stories he told me of how he fed the monkeys when he was a kid. Then, he saw the goldfish! He acted as if he was seeing them for the first time.
Poor Grandpa! He fell ill with Alzheimer's disease (阿尔茨海默氏病) last year. The doctor said it was a lifelong disease which could destroy a person's memory. The patient might also not be able to make reasonable judgement (判断). But when my parents invited him to stay with us, he turned down and said he liked living alone. One day, he forgot to turn off the fire after cooking porridge. Luckily, one of the neighbors came to help him before the fire could spread.
It was then that my parents brought Grandpa to live with us. Often, he would forget my name and ask me who I was and what I was doing in his house. Each time I would answer softly, "It's me, Tom, Grandpa!" He had forgotten who I was, but he would always be my beloved grandfather.