One of the many heartbreaking effects of Alzheimer's and other dementias is that the person with the disease can become paranoid. You see paranoid behavior in nursing homes on a regular basis and it can be confusing to observers. Is an elder complaining about being ignored and not fed because he or she can't remember eating or is this really happening? Does the person think her bracelet was stolen simply because she put it somewhere (maybe twenty years ago) and can't find it, or was it actually...