Laughing hysterically or finding no humor in it at all will be your worst-case scenarios. Best if he gets a small chuckle, then you'll probably be assured that he won't shoot up the school within six months if he doesn't make tenure.

http://met.psu.edu/~cloth/classes/Meteo473/webpages/Meteo473.EEC.000.MainCoursePage.html
But God, I'm scared of this class, Greg.

