Please don't take this the wrong way, but I can't think of any other way to say it. Has anyone tried telling your father that he's being unreasonable? Has anyone shown their frustration with him? Or is everyone tiptoeing around him?? From your posts it's obvious that he's used to being in charge and making all the decisions. Might do him some good to be allowed to suffer in silence and alone, a place where his stubborness doesn't affect others. By no means am I suggesting being cruel or insensitive to anyone, simply saying it's time to let him know that enough is enough and point out his poor behavior. Who knows, might work.
Wishing you well with it!
Minnie

SCC Left Mandible. Jaw replaced with bone from leg. Neck disection, 37 radiation treatments. Recurrence 8-28-07, stage 2, tongue. One third of tongue removed 10-4-07. 5-23-08 chemo started for tumor behind swallowing passage, Our good friend and much loved OCF member Minnie has been lost to the disease (RIP 10-29-08). We will all miss her greatly.