Rats Reject Wall Street Journal

My pet rats(Stella and Hyphy) get a newspaper strip confetti shower after I clean their cage periodically. I usually use the local free daily or weekly edition for the stuff they use to feather their nests. I found a copy of the "special business edition" of the WSJ on the BART and brought it home. After three days, they have left it alone. I have two theories why: one is basic the inks are different and the smell is foreign to them, the second more akin to a conspiracy, that the rats know when something is so evil and comes from another rat so offensive racist and specieist that they even have the moral character to resist associating their household with thieves and liars such as Rupert Murdoch and the vast right wing media empire. Maybe its not rat shit I smell but the "new world odor". Smells like swine poo to me...