Dear Annie: My wife's aunt "Zelda" is 83 and lives alone. She is in the early stages of dementia, and her short-term memory is rapidly deteriorating. She will ask the same question multiple times within a 15-minute span. She also is extremely paranoid. She is convinced people are entering her house at night and stealing small items, such as watches. She also owns a gun. I refuse to go into her home at night for fear she'll shoot me.