I don't know about you, but this is actually pretty awesome.|
This seems like a harmless tube. In fact, it was harmless: Israeli farmers used the first version to scare birds from crop fields. Then, somebody converted it into a crowd dispersion mechanism. And then, they discovered it could kill.I could easily see these set up instead of minefields, some day. Set 'em off when enemies are far enough away and keep them from coming further.