Oh god, I think I win on this one.

My dad had a vietnamese adopted brother, Willie. He has been through a lot of rough times and can be very unstable. He's a nice guy but he flips on you unexpectedly and can be very angry, he has struggled with alcoholism all his life. My dad was terminal with cancer, my family had been notified. Willie flew down to visit because they hadn't spoken much over the years. My dad was very thin and pale, and very clearly dying. While he was here, Willie got drunk and incredibly angry. He shouted as loud and as you can imagine, started yelling at him about crazy things that didn't matter. It must have lasted an hour. He was swearing and almost became violent. We almost had to call the police.

He was told to leave and we've never spoken again.