I suppose the oompa loompa, but only for the reason that seeing walls bleeding is at least a little easier to explain - and can't directly do anything to you. It'd more depend on what's MAKING the walls bleed (and that could be a daydream/hallucination/whatever - more easily explained as "you're just imagining it" than an oompa loompa).

I can totally see you thinking seriously about this and arguing about it. You have the strangest little brain, twerp.