I often think about the good moments. The week before the argument, I had bought him a microcontroller because he wanted to get into battery module development and to volunteer in his home country of Pakistan after retirement.
Since his death, I have been piecing together his life in whatever way I can in fear of losing those memories to the sands of time. Being born in Pakistan in the late 50s there were not too many video cameras around and so that part of his life is sort of locked away in the memories of the relatives who are still alive. Once they are gone, it pains me to realize that those parts of him are gone forever. One thing I have done is old b&w photos were "colorized" and that helps provide a small vision of his early days. Note taking in a timeline fashion has been helpful.
Furthermore it is interesting to see how many relatives have come forward with personal stories that they never shared in the past. It painted a side of my father that I never knew...because the moment to ask those specific questions never came up. Still, I am glad the stories were told to me. I am now trying to do the same for my mother while she is still around but she is so camera shy that I am finding it difficult to do a direct interview. I have settled on making notes and taking lots of candid photos so I have something.