 Near the beginning of the movie, right after Mr. Hand sends Spicoli  to the front office for being late to class, Mr. Hand passes out the  class schedule of quizzes. After the paper is passed out, the  students put the page up to their noses and deeply inhale. This was  a popular school ritual of the 60s, 70s and early 80s as  photocopying machines were very expensive, so spirit duplicators  were used. The spirit duplicators used a colored wax as the "ink"  and a noxious solvent as a transfer agent to impress the ink on the  paper. These solvents sometimes took a long time to dry, hence the  students use of these solvents as a short