So, Crazy Jim walked into a recruit's World Religions class at their high school and sat through the class. 

Here is the tweet from the teacher, who didn't sound all that impressed with his stunt.

Apparently Jim Harbaugh participated in a class lesson at De La Salle while visiting Devin Asiasi and Boss Tagaloa pic.twitter.com/2diNOFBHei
— The Victors News (@TheVictorsNews) January 19, 2016