The full story is here, but it boils down to this:
1. Art teacher tells students to draw a scary mask in art class.
2. One student draws this:
(The art teacher even helped with the shading of the eyelids).
3. Student gets in hot water for the "troubling" drawing, and isn't allowed back into school until he undergoes psychiatric evaluation.
Yup. He completed the assignment, and they punish him.