My 86 yr old uncle is in early stages of Alzheimer's. He's always been one of the sweetest and most good-natured people I've ever known. We were at a party this weekend, and he fell and hit his head, so I accompanied him and his wife to the ER, because I knew they would need support and a 2nd set of ears (she's elderly and overwhelmed most of the time). While going through triage, my uncle was clearly confused and even forgot how he had hit his head (he seemed to not recall being at a party). So, I began to contribute some information about him (his wife wasn't even speaking up), and he suddenly turned on me! He was yelling at me with rage and anger, telling me to get out; that I was not helping! In all my years, I'd never seen him behave like that, nor speak to anyone in this way. It was absolutely devastating to me. I quietly got up and extricated myself from the hospital. I spent the remainder of the day in tears.