The setting takes place in August of 1960.

This poster is also displayed in the lobby of Principal Clayton Wolf's office in preparation for the 1960-1961 school year. It addresses the issue of class clowns.
Back in that day and time, besides teachers not liking class clowns, most high school students didn't like class clowns either. By the time students get that far through school they take their education and future seriously.
It was mostly the elementary school students, and some middle school students, who still saw class clowns as entertaining.