Yesterday I put up a video clip from a Norwegian TV show whose title translates as something like "Don't do this at home". It was well received, so here's another.
I'm sure most of my readers know about home-made rockets, consisting of a water-filled container that's pressurized with air. When the pressure is suddenly released, the container takes off like a rocket. The Norwegian team decided to do the same thing with an extra-large, extra-long steel container and fire it through a house, releasing the pressure by the judicious use of explosives. (They do seem to use an awful lot of det cord on that program - take a look at their YouTube channel and you'll see what I mean.)
Boys and their toys, indeed!