*Some kid was playing around with Mr. Ku's stuff and he noticed*
Mr. Ku: Hey, don't touch that! It's not yours; you don't know if it's poisoned or not!
// After solving a long and tedious problem
Mr. Ku: But now we have TWO ways to solve this problem!
*observes sleeping class*
Mr. Ku: ...nobody jumping for joy.
// Mr. Ku is teaching a lesson; a student is whistling.
Mr. Ku: *stops lecturing* What's that blowing noise? Wind?
*looks around, alarmed*
Mr. Ku: Is there hole in my classroom?
// Mr. Ku's math class.
Mr. Ku: ... and that's how you get the answer.
Student: Wait! I don't get it!
Mr. Ku: Ok, how long should we wait?
Student: I don't know, one second.
Mr. Ku: You probably need more than that!
