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
Nancy Kerrigan 1994, Kerrigan hosted "Saturday Night Live", season 19 episode 15, featuring musical guest Aretha Franklin. In 1995, Kerrigan had a guest appearance on "Boy Meets World" in the episode "Wrong Side of the Track". In 2004, Kerrigan sang a cover of "The Best" for a Tina Turner tribute album. Kerrigan appeared in the Fox television program "Skating with Celebrities" (2006) and played a small part in the ice-skating comedy feature film "Blades of Glory" (2007) with Will Ferrell. She hosted "Nancy Kerrigan's World of Skating" on the Comcast Network starting in 2005, and has done commentary work for other skating