My happiest moment with my father was when I was six years old. He had fixed up an ancient bicycle for me and took me to a large lawn in a nearby business park. He taught me to ride. I ended up skinning my knees, but not before my Dad held me on my bike as he ran down the hill, holding me upright.
Another came when I was 15, and I was breaking up an old belltower on my grandmother's farm with a sledgehammer and axe. I hit one board, and it swung back at me and drove a rusty nail into my toe. As I we drove to the nearby doc-in-a-box, I must have given the impression that I was about to faint. My Dad, driving, looked at me, got a very serious expression on his face, looked back at the road, and floored it. It was then that I knew that my Dad cared about me (this is not necessarily self-evident to a 15-year old).
What is your best memory of your Dad?