That and time. You could get hit with high volts and current, but still be fine if the exposure is short. I have had a few 240v mains shocks on high current fus

That and time. You could get hit with high volts and current, but still be fine if the exposure is short. I have had a few 240v mains shocks on high current fuses, but they were all pretty quick and I had nothing but very slight burns and sore muscles for about ten minutes. However, there is definitely a risk here, albeit what appears to be a manageable one. Perhaps there could be some use in building volt meters that glow into gloves for emergency responders to help mitigate some of the risk.