Quinn is first seen in The Drunk Train, when Ted and Barney tell the gang about their date at a club. Barney tries several plays on her, but she doesn't fall for them, and tells him that he has no chance with her. Later, Barney keeps complaining to Ted about her throughout the rest of the episode, and even says no to a girl offering to hook up with him. Ted then realizes that Barney likes Quinn, which Barney vehemently denies. Barney then reveals that he did sleep with her, but counters that he doesn't like her. However, it turns out that Barney does like her, when he again says no to the girl he was going to hook up with. When she asks if he has a girlfriend, he tells her that maybe sometime he will.