Continuity mistake: When Coriolanus and Sejanus are eating lunch at the Academy, Coriolanus has three cookies on his plate. He places a cookie into his lap to take to Lucy Gray, leaving two cookies on the plate. When the camera angle changes, the third cookie reappears on his plate.
Continuity mistake: When Coriolanus and Sejanus are eating lunch at the Academy, Coriolanus' sandwiches switch positions several times, stacking and unstacking, and turning several times.
Answer: Because he didn't like her, he realized she was just a rich person who saw him as a means to an end, and really didn't care if he survived. He wanted to give her a scare.
Brian Katcher