My mom who is 84, has dementia and other medical problems, is starting to become upset when she askes for help with something or about a problem and I try and to help out. Example: We bought her a new camera for Christmas, we put batteries in it and a memory chip. At a dinner on Dec 31st we took pictures with the camera and tried to help her use it. We explainded to her that if she leave the camera on or keeps looking a the pictures she as taken, it uses up batteries life. Last night we were there and she was having problems with the camera. She was telling us that she had not taken any pictures and that it just didn't work. We tried to explain to her that we had used the camera and that she was taking pictures just the other night. She just became angery at us for saying that she was taking pictures and that no she had not used the camera. Well, we went and got new batteries for the camera and it started to work just find and we showed her the pictures that she had taken. Same kind of thing happend about a conversation about her phone. She has used a cell phone for the last 2 years and then last week we were talking about her cell phone and she said that this was news to her that she had a cell phone and became upset with me because I didn't tell her about the cell phone plan. She is on my family plan and I pay for the cell phone bill. I'm just not sure how to talk with her when she gets in one of these moods and lately it is becoming more frequent. I tell her that I am very sorry that she can't remember, when we have talked or when she has done something and then I think she just becomes more angrey or saddened. I would not say that my mom is depressed but maybe she is. Any suggestion on how to deal with these types of situations?