If my sons will look at me when they are grown up, like how I look at my dad, I can consider my life partly successful.
My dad is always there for me and my sis, like he is always there for his grandchildren. No asked question is to much. Maybe he did not always shown his affection but actions proves more love than words.
Now, I am a dad myself, I respect him even more. He had so much patience with us, a lot more than I have with my kids. He is my role model! Nobody comes even close to him!