Dr. Katz gets the urge to build a wood shelf for the wall. Ben agrees to get the necessary supplies, but causes problems when he breaks a nail gun and therefore can't return it at the hardware store. In the end, they build a shelf, but it's less than satisfactory, so they plan to put pamphlets on it.
Did You Know?
There's something about taking a thing that exists in nature, you know, in this case particle board, and just molding it to suit some kind of selfish purpose.