Some teachers, like this Chinese guy who looks like "The Penguin" from Batman Returns, in Sultan Abdul Samad ...
told us "Just copy the workbook answers from your elder brother / sister that has taken this course".

The reason was, all the equipment was damaged, and the only one that worked properly was the one involving the laser pointer where all the electronics were protected from tampering.

Bur of course, when a person does an experiment and it doesn't turn out right, despite all the instructions being followed and understood, student must be stupid, amirite?