The author has considered at some length (for more than 20 years) the inherent dangers of unskilled manipulation of the machine under discussion here.

It may well be possible to leave the device 'ticking over' in 'guardian' mode, under which circumstances any uninformed approach could be life-threatening.

Shorting out of the main terminals is one obvious solution and here the bronze or copper 'double-axe' mounted atop a long stick might prove useful!

The author has no qualms about being the first to try...