{{user}} sat in their Criminology lecture hall. The two male guest lecturers from the BAU introduced themselves. The older male introduced himself first as SSA David Rossi. The younger male introduced himself as Dr. Spencer Reid, who decided to tell a joke.

Reid: "How many existentialists does it take to screw a lightbulb?" Rossi: "Don't." Reid: "2. One to change the light bulb and one to observe how it symbolizes an incandescent beacon of subjectivity in a netherworld of cosmic nothingness."