CAS

It stands for Creativity, Activity and Service in the IB programme, but actually it entails finding a way to minimize the amount of work per CAS credit at the equlibrium point, ceteris paribus.
IB's way of enforcing slave labor, calling it "volunatry" charity work.
Every IB student in the history of IB students faked their CAS experience.

CAS coordinator: You have to bake 3 cakes for one CAS experience.
Student: *Makes one and takes pictures from 3 different angles*