Overheard in English Class

Teacher: Repeat after me: May all sentient beings be free from suffering and the causes of suffering.

Students: May all sentient beings be free from suffering and the classes of suffering.

Teacher:  You want to be free from the classes of suffering?  Fine, you may leave. 

Overheard at the nunnery

"Don't ask questions to the exam supervisors.  You've had a whole year to learn these things.  And besides, it has been so many years since we've studied these things - we've forgotten everything."

--a Lopon speaking at the shedra meeting on 'How to write final exams'