Cassie is sitting smiling with her colleagues, celebrating a good result, when she hears the familiar strains of "Hit Me With Your Rhythm Stick". Her smile fades and she puts her drink down, feeling the irrational twist in her chest.
"You OK?" says Rob, frowning at her.
"Yeah." She stands up abruptly, pushing her chair back. "Excuse me a minute."
"Probably her time of the month," she hears Quigley comment as she heads for the door.
Outside, she stands where she can't hear the jukebox and lights a cigarette. She's puffing on it when Rob comes out to join her.
"Got a light?" he asks her. She lights his cigarette for him and they stand watching the other drinkers.
"It was the song," she says finally, although he hasn't asked. "It was playing the night of the crash."
"Oh. Shit." He looks sympathetic.
"I know it's stupid." She blows out smoke. "It's just a song."
"I understand." He nods. "Do you want to be alone?"
"Nah. You can stay."
They finish their smokes in companionable silence, until five minutes have elapsed and it should be safe to go back in.
"Another drink?" he asks her.
"If you're buying." She follows him back inside to the bar, just as "99 Red Balloons" starts playing.