Knowing me, my wife would come in the garage and just find a pile of ash where I once stood if I was working on that thing.
I have to admit I was NOT a happy puppy adjusting the voltages for the over-volt cutoff circuit. You have to power on the monitor with the HV probe jammed under the anode cup and shorted to the exposed DAG spring/wire. It crackles like a FOTHERMUCKER!!!! Then you have to turn a tiny pot on the HV board, your hand very close to the flyback and other nasties, until the voltage goes all the way up to 25,000V, the higher it goes the more intense the crackling gets from the anode cup. At this point demon voices are coming from the anode saying things like 'Swallow your soul!!!'.
So now you have 25,000V travelling between the anode and that exposed wire on the back of the tube, about 5 inches from your hand.

Now you have to turn down the cutoff POT until it kills all power to the circuit and the voltmeter drops to zero. Then turn it all off, drop the main voltage pot below 25,000V so it doesn't trip as soon as you turn it on. Then you have to turn it back on and drop the tube voltage all the way down to 19,500V which is where it's supposed to operate at, again while it is all live. At 19,500V the demon voices just sing 'Burninating the Countryside and the THATCHED ROOF COTTAGESSSSSSSS!!!!' so not quite as scary as they were before.
After all that, you have to have enough faith in that probe to actually take hold of it and disconnect it from the anode and DAG circuit of certain death (while the power is off of course).