Approximately ten years before the beginning of the series, House entered into a relationship with Stacy, a constitutional lawyer, after she shot him during a "Lawyers vs. Doctors" paintball match. Five years later, during a game of golf, he suffered an infarction in his right leg which went misdiagnosed for three days. House would eventually diagnose the infarction himself. An aneurysm in his thigh had clotted, leading to an infarction and causing his quadriceps muscle to become necrotic. House had the dead muscle bypassed to restore circulation to the remainder of his leg, risking organ failure and cardiac arrest. He was unwilling to allow an amputation opting instead to endure excruciating post-operative pain to retain the use of his leg. However, after he was put into a chemically induced coma to sleep through the worst of the pain, Stacy, House's medical proxy, and Cuddy, who was House's doctor at the time, acted against his wishes and authorized a safer surgical middle-ground procedure between amputation and a bypass by removing just the dead muscle. This resulted in the partial loss of use in his leg and left House with a lesser, but still serious, level of pain for the rest of his life.