// Steven Ng brings up the symptoms of a disease.
Steven: I don't know what it is, but it's like the white blood cells attack the hair follicles.
Mr. Citron: Oh yeah! That's uh...
*pauses*
Mr. Citron: That's not what I have. Good one.
// Student 1 is giving an anti-smoking presentation
Student 1: You there! You look like a smoker with your long hair!
Student 2: But I cut my hair!
Student 1: A pedophile can shave his beard, he's still a pedophile.