We just moved Mom into a nice, new assisted living facility that specializes in Alzheimer's patients. Mom has shown various stages of dementia over the past two years, but her memory has improved since she has been on Aricept. She still has "bad days" and occasional delusions. Mom prefers to sleep in and stay in her room, and is annoyed when Alzheimer patients walk in "looking for their shoes" or "asking if she swallowed a baby today," or just stare at her and start touching her stuff. She has taken to locking her door, but what is the polite/correct way to respond to the other residents when we pass in the hall? (Some of them never stop walking the halls and knocking on all the doors all day long.) We only picked this facility because Mom got kicked out of two prior nearby assisted living facilities "for safety reasons" (i.e.multiple falls and pretty severe injuries to herself), and she absolutely refused to move to a nursing home. Rules here are very strict (no food in rooms, no heating elements, no OTC drugs (even though doctor's orders okayed them), so the adjustment is pretty hard. What's the best way to talk/deal with the other residents so as not to hurt anyone's feelings and/or make them angry?