My wife has had Alz. for about 2 years and seemed to cope with with the short term memory loss. She has gone through the drug regime Donepezil, Mementine, then onto Risperidone after she started to get agitated. She now has suddenly become very aggresive and violent when she can not believe this is "her" house and I will not take her home. Have you any suggestions how you cope with the agression/violent episodes which start in the middle of the night at times. Do I just leave her in her utter frustration screaming and shouting and throwing things and walk away. Is this one of the sides of Alzhiemers ?