Comparable to Bigfoot, Old Nat is actually just a myth. Many students will try and convince you that they've spotted Old Nat, this is however a lie and/or is disillusion. There is no such thing as Old Nat, and we would prefer if you would cease inquiry into the matter. She does not exist. There is no truth to find. Stop.
Oh, what's that? You think you have photo proof that Old Nat exists? Sure. Upload it; bet you can't.