Hi Carlie
sorry to hear your are all going through such a horrendous time, its such a cruel world sometimes
I think its your dads way of having some sort of control surrounding his illness, I think he is just preparing himself for one of the ways it could go, I don't think think he is necessarily assuming that the worse will happen just seeing it as a possibility and wants to cover all basis maybe... try to see it as his way of coping, it sounds like its his personality traits that lead him this way, just keep supporting him and each other as best you can,.... most times there seems to be the positive people, the frightened scared negative people in each unit, maybe that's naturally what happens so the person gets something from each personality and for me there are times when one or more are needed from time to time... Take care my friend I wish u all well