...which is, as always, coming, I bring you this.
On Yom Haatzmaut I was on a hike, and came across a fenced-off mountain valley, and on the fence were signs saying:
We shoot here
The sign was ambiguous: it's not clear whether the testing consists of shooting, or whether shooting (intruders) is why you should stay away. I'm not sure which would be cooler. Since I passed up my chance to intrude into this presumably top-secret military area, I guess I'll never know.