That's actually not the major hazard. It's
well insulated, and unless
it's defective, it won't flash over. The main problem is the
few hundred volts on tracks on the monitor analogue board. Painful if you
touch them to say the least.
That's why the bloke that gave me the things to check recommended I solder
on some flyleads to the components I need to check; a lot less risk of
zappage and I can put the ends into a terminal block for ease of testing.
a