Many of the episode titles are also the names of songs; "Rebel Without a Pause" is by Public Enemy.
Rizzoli, Frost and Korsak walk into the classroom while Professor Cravitz is addressing the class yet he doesn't stop to ask them why they're there. Ben Dunn pulls out a gun to shoot Professor Cravitz yet not one student moves. It seems if guns were pulled out in a classroom, students would want to get out of the way.