Hi, Cesiumsponge,
It looks like you had second thoughts on that idea and that is good. "Staging" a crime to prove a point is not a good idea and could possibly get someone killed if an overzealous cop or nervous civilian decides to intervene and starts shooting. Besides, if your GF is terrified by the "BG", and then finds out the whole thing was a fake, she will probably be your ex-GF very quickly.
In this area last week, three teen-agers decided to stage a fake kidnapping, and tape it for some internet contest. A neighbor saw the girl being dragged into a car and, naturally, called the police. After many wasted police hours, and gallons of wasted fuel for the police helicopter, the facts came out. It looks like the kids won't do time, but will have to pay for all the police overtime and the chopper operating costs. I think they have learned a lesson.
Jim