Why do students skip class?

= Because they are not interested in that subject.

Why are they not interested in that subject?

= Because that subject is not interesting at all.

Why is the subject not interesting for the students?

= Because the students think that it's an useless subject.

Why do some of the teachers need to teach that useless subject?

= Because only those teachers are good in that subject.

Why the teachers like that subject but the students hate that subject?

= Because the teachers fail to make the subject interesting, they make the subject more boring instead.

Japanese comedy show where unsuspecting people using the bathroom get exposed after 10 seconds. It's wierd and don't ask me why they're sitting backwards ....