Boden: He seems like he’s got a lot of heart though. Severide: He does, but he’s not a firefighter. Boden: No, he’s a recruit. It’s your job to turn him into a firefighter. That’s why it’s called training. Severide: I can teach him how to kick in a door or how to use a thermal camera. I can’t teach him firefighter instincts. I can’t teach him common sense. I know you and Chief Mercer go way back, but I… Boden: Severide, you’re the instructor. You’re the only one qualified to assess Jacob Mercer’s performance.