You will be given a definition of a task first, then some input of the task.
In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: In January 1978, the Sex Pistols embarked on a US tour, consisting mainly of dates in America's Deep South. Originally scheduled to begin a few days before New Year's, it was delayed due to American authorities' reluctance to issue visas to band members with criminal records. Several dates in the North had to be cancelled as a result. Though highly anticipated by fans and media, the tour was plagued by in-fighting, poor planning and physically belligerent audiences. McLaren later admitted that he purposely booked redneck bars to provoke hostile situations. Over the course of the two weeks, Vicious, by now heavily addicted to heroin, began to live up to his stage name. "He finally had an audience of people who would behave with shock and horror", Lydon later wrote. "Sid was easily led by the nose."Early in the tour, Vicious wandered off from his Holiday Inn in Memphis, looking for drugs. When he was ultimately found, he received a beating from the security team hired by Warner Bros., the band's American label. He subsequently appeared with the words "Gimme a fix" on his chest—accounts vary as to whether the words were written or carved there. During a concert in San Antonio, Vicious called the crowd "a bunch of faggots", before striking an audience member across the head with his bass guitar. In Baton Rouge, he received simulated oral sex on stage, later declaring "that's the kind of girl I like". Suffering from heroin withdrawal during a show in Dallas, he spat blood at a woman who had climbed onstage and punched him in the face. He was admitted to hospital later that night to treat various injuries. Offstage he is said to have kicked a photographer, attacked a security guard, and eventually challenged one of his own bodyguards to a fight—beaten up, he is reported to have exclaimed, "I like you. Now we can be friends.".
Output:
What is the first name of the person who challenged one of his own bodyguards to a fight?  ?