He will not listen to anyone. Although he feels like he can drive a car, he can't seem to bring his dirty laundry downstairs, change his diaper, nor bring his soiled diapers downstairs and out to the trash. His room smells like urine and when he leaves his bedroom door open the stench travels down the hallway. He sits in soiled clothes. Yesterday, my brother was in the house and my father asked him to go get his cell phone he left in his room, in his chair. This is the chair he sleeps in and watches TV in because his bed is filled with junk. My brother went upstairs, put his knee in the "seat" part of the chair in order to bend down between the arm rest and cushion. Immediately he felt something wet. The chair pad was soaked with urine. My dad sits in this everyday and just doesn't care. We have tried and tried to get him to shower, change, etc. To no avail. He comes down for dinner and if they don't actually "fix" him a plate, he starts eating out of the serving dishes with his fingers. My mom and sister, who live in the home with him, believe he knows what he is doing and just does it out of spite. I want peace and harmony. My dad needs help and frankly...I don't know what to do.