Could there be a black hole in the Oort Cloud?

Could it really be possible that there exists a black hole lurking within the Oort Cloud, that enigmatic region of icy bodies that surrounds our solar system like a distant halo? The idea of such a cosmic phenomenon residing at the fringes of our solar system's known boundaries is indeed intriguing, but what evidence would support such a theory? Could the gravitational pull of such a massive object explain some of the mysterious phenomena observed in the outer reaches of our solar system? Or is the notion of an Oort Cloud black hole merely the stuff of science fiction, waiting to be debunked by the rigorous scrutiny of astronomers and astrophysicists?