Cara,
I had never heard "catty corner" until I met my second wife. She was raised in Opelousas, Louisiana. If something was askew or "cockeyed" she would refer to it as "cattywampus". I England we would have called it "a bit pissed".
I suppose when a thread gets off track here we should call it "Mudcattywampus".

By the way did any of you ever visit that pub in Kent, England called "The Rorty Crankle"? Generally translated as "The Happy Corner" although rorty means more than just happy.

Bert.