Good thinking Paul,
It would not be the first time, that something like this has occured, maybe there might be a Cannabis Factory next door,don't laugh, the only way that these have been tracked down over here, is through their huge current draw on the mains.
Meter Readers, have "popped", a few of these places, with the continuously large unit readings between checks, they rang the Police, NZ$15,000 worth of Dope was found in the house, heaps of people went down over that one. [Linked Image]
Couldn't have happened to nicer people,I say, and they got all they deserved too!. [Linked Image]