I lost my son to burkitt's lymphoma 24 years ago this week. The last words, the sounds, the snow falling outside, there's nothing I'll ever forget about the moment he left. I was silently wondering the other day, what if one day science could remove painful memories for good. Would I participate? Which memories would I choose to say goodbye to? If the memory goes do any scars brought on by the event disappear too? There was quite a few, mostly from childhood that I decided I might be able to do without. But there's not a chance in the world that I would miss one minute of missing my son and knowing exactly what happened, what was said, and that we really loved each other. I wish you and your friend peace.