I am so sorry that you are going through this. I posted a few threads like this over a year ago. My Mom (now recuperating from a stroke), was doing goofy things like misplacing her car, etc. Finally, my sister and I put our feet down and then told her that she needed to try assisted living for a month. After a couple of other challenges, she adjusted the best that she could. It sounds like you and your brother may need to make a visit together, check out assisted living facilities and then let your Dad pick one out. I'm sorry to sound so harsh, but it will be for his own good. ((((((Martha))))))
Life is all about a$$; you're either covering it, laughing it off, kicking it, kissing it, busting it, trying to get a piece of it, behaving like one, or you live with one.