"That's crazy talk" has got to be my favorite line in Dilbert. It's probably one of the most used punchlines too - even though the jokes it's used for are completely different from one another.
OMG, our VP did this with all the empty cubes, but he only put computer screens in them, but he did go the extra mile to put name tags on the cubes too, Ricky, Bobby and Lucy (ala Talladega Nights).