In a surreal classroom, a bored professor tries to mull his way through a class on Buddhism. "The central tenet of Buddhism," the teacher intones to an oblivious collection of students, "is karma." Karma, as we all know, is the law of cause and effect. What goes around, comes around.

The professor rambles on, though his attention becomes increasingly distracted by an annoying fly. Finally, he loses track of the class entirely and focuses all his attention on killing the fly.

When he succeeds in squishing the fly, however, karma plows its way through the classroom--in the form of a big yellow school bus--and flattens the professor in his tracks. The class finally wakes up, shocked by the raid explosion of events. Karma express.