Watch helplessly my dad 'die' of sudden cardiac death. Give him CPR, watch as the paramedics tried to revive him and shock him 2 times while slowly watching him turn this weird blue/purple color. Then go to the hospital, see him all swelled up and hearing them say he needs a heart transplant. Then hearing them say they give him a 50/50 chance of living.
After that, dealing with him being brain damaged and unable to remember everything. Having him not remember my childhood and basically live with a stranger who looks like my dad but doesn't remember anything dealing with my childhood and day to day events and acts like someone else.
I'm pretty sure I won this thread.