FACT: a black hole is not vacuum cleaner like in science fiction. In fact, it's possible that we're all in what could technically be called a black hole and we'd never know the difference. If the sun were turned into a black hole tomorrow with the same mass, the orbits of the planets in this solar system wouldn't change (we'd all die without sunlight though). A black hole just has an event horizon stronger than the speed of light, which essentially means that a low mass black hole wouldn't even be noticeable.
excuse my somewhat funny science, but i'm pretty sure this is true. the facts of science are usually pretty disappointing anyways.