The first thing to remember is that dementia, not the person, is the culprit. Combine short-term memory loss with the anxiety, the confusion, and the frustration that is part of dementia, and you can see the reason for your loved one’s paranoia. Your dad can’t find his hearing aid and he is certain that he put it in the box where it belongs. Why would he have done anything different? Now, it’s gone. So someone took it. You’re the only one there, so it has to be you. This is very real to him.