If I remember family lore correctly, my late, crazy great-grandmother was in the habit of falling on the sidewalk and then suing (she also stole soup spoons from restaurants in New York's Chinatown). One time, when I was a kid, she was walking on our block and fell in front of our house. She wanted to sue. My mother (her granddaughter) had to do some convincing to prevent my great-grandmother from siccing the lawyers on us.
This case might have more merit, but I still can't imagine suing my family, especially my parents. Unless I was a Hollywood child star, and they were
taking all of my money, or I was
Drew Barrymore.