100:1 scope probes

[ppppenguin]

I still remember the worst shock I ever had. Probing -1200V, mains derived, on the cathode of a 'scope tube. The probe insulation wasn't as good as I thought it was. I was thrown clear but my arm muscles contracted so violently that they ached for a couple of days.

I've also touched the collector of a line output transistor, 1000V or so of pulses. That just put a small and relatively painless burn on my finger.