Anastasia's playful behavior was often punished. According to Gieb Botkin, "in naughtiness she was a true genius". He was the son of the court doctor Yevgeny Botkin, who later died with the family at Ekaterinburg. Anastasia tripped the servants, tricked her teachers, and climbed trees and refused to come down. Once at a snowball fight, she rolled a rock into a snowball and threw it at her older sister, Tatiana. Princess Nina Georgievna, Anastasia's cousin, said that "Anastasia was nasty to the point of being evil". She said that Anastasia would get angry when her friends won games, or when the younger Nina was taller than she was. She also cared less about her looks than her sisters. Hallie Erminie Rives, an American writer, described how Anastasia ate chocolates without taking off her white opera gloves at the St. Petersburg opera house when she was 10-years-old.