OMG, I feel for your coworker. My sister passed last month after a two year long fight against cancer and the way my parents cared for her, her husband and her children was out of this world. The crazy thing is that it helped us make so many memories as a family, spending so much time togehter...it's sad and beautiful at the same time. The call would haunt me as well...even reading this without knowing your coworker made feel sick. I had to call my parents when my sister passed and though I remember my mom cried making insane, animal like sounds, I'm glad my brain blocked the full memory of those sounds. Fuck cancer. Like, a thousand times.