Rivalry consequences of fighting. However, when the competition is not enough in sports and the tensions are high fighting may ensue. Rivalries may increase motivation, lead to greater effort, and better performance. It may also contribute to greater risk taking behavior among participants, and increase a propensity for unethical behavior. These difference may lead to poor decision making on the part of groups and individuals that may not otherwise take place in the absence of a rivalry. Examples examined in the literature include the 1994 attacks by figure skater Tonya Harding against her rival Nancy Kerrigan, the admission in court by
Oleg Vasiliev (figure skater) skaters: Oleg Vasiliev (figure skater) Oleg Kimovich Vasiliev (; born 22 November 1959) is a Russian former pair skater who competed internationally for the Soviet Union. With partner and then-wife Elena Valova, he is the 1984 Olympic champion, 1988 Olympic silver medalist, and three-time World Champion (1983, 1985, 1988). Their coach throughout their career was Tamara Moskvina. After retiring from competition, Vasiliev became a coach, leading the pair of Tatiana Totmianina / Maxim Marinin to the 2006 Olympic title. Vasiliev was born in Leningrad (modern-day Saint Petersburg), Russian SFSR, to parents Ludmila Konstantinovna Vasilieva, a nurse, and Kim Mikhailovich Vasiliev.