paulmilbank: Doesn't everyone need one of these for their evil villain plans. If someone pisses you off, just send it off on a low arc under their house. Neighbours blocking your view... not any more, just sink em. The possibilities are endless as long as you are planning to make things disappear into the ground.
and the best bit is that in NZ they only own the top 30cm of their land, so you don't even have to tresspass :)