Scary eh? There are approximately over 100 runaway black holes in our Galaxy. They act like little robotic vacuum cleaners cleaning up left over debris in space. These small black holes 10 miles in diameter although they can do an amazing clean up job, die out quite quickly so I doubt we need to worry about them
I'll give you a link from my *Merlin* stories where I write about black holes (if you're interested)
Right under the image of Centre of our Milky Way Sagittarius A - it begins to speak of and explain all about black holes.
http://www.geocities.com/trudi.katharine/merlin_34.htmlThat also explains why you see so many character names on my videos lol