... I've never heard of it inciting violence.
From the Duke University police log:
6/24/08, 3:34 p.m. DHN (Duke Hospital North) Cafeteria. Simple Assault. An unaffiliated female struck an employee after complaining about the food. The visitor was arrested and charged with RDO (resist, delay and obstruct), Simple Assault, and 2nd Degree Trespassing.