I build and sell reproduction electronic ignition units for old 1980s sports cars, and I've gotten hit with the full secondary voltage on my bench setup a coupl

I build and sell reproduction electronic ignition units for old 1980s sports cars, and I've gotten hit with the full secondary voltage on my bench setup a couple times. Even with current limiting and safety cut-outs in place on my bench top power supply, it is very, very unpleasant.