General Discussion - The benefits of knowing some pidgin Chinese

Yesterday. Lecture hall, 80 students.

Second row: Chinese girl fell asleep. Despite me fighting with all my weapons to keep the lazy lot entertained.

So I asked: "睡好了吗?" 

I do not know if that was really grammatically correct, but it had the effect of a lightning stroke. For the rest of the lecture she stayed wide awake.

This was already the second time this worked.