LOST: The Black Rock

Ninth grade science teacher Leslie Arzt lectures at length about the danger of handling dynamite, especially that which has been left exposed to the elements over the years.
Ninth grade science teacher Leslie Arzt demonstrates the danger of handling dynamite, especially that which has been left exposed to the elements over the years.

This is the LOST writers having fun with the situation in which one is trapped by a bore and wishes the person would just disappear.

Edit: Oh, forgot the link.