quotidian cliche misinforms us — PWEI and GBOA (not to mention NAD) were JABOF and thus NEVER TRUE GREBO. In the interests of the quest for a higher reality, all is now revealed:

Deep Grebo Level 1: It all makes sense when you think about it…
Deep Grebo Level 2: There’s unheimlich and then there’s UNHEIMLICH
Deep Grebo Level 3: “We have such sights to show you!