Earlier in a phone call with my mother I argued

Question

Earlier in a phone call with my mother I argued

with her on whether a mains electric shock would be lethal or not. I argued that it depends on how the power is delivered (live to neutral or live to ground, as well as which body parts are connected), but that it would definitely be dangerous if the exposure is longer than even a millisecond (with defibrillation being required within between 1-10 minutes). She argued that a young person with a healthy heart would probably get away with it since the circuit breakers would pop regardless (even between live and neutral, hand to hand). I live in a 230V system with I believe 50A circuit breakers (I'd have to check but that requires downtime, suffice it to say that it's a couple dozen amps at least). The breakers would ostensibly pop after ~30s of exposure and leave the person attached alive but with severe heart problems afterwards (like for the rest of their life, not fibrillation). Both my parents used to be electricians at some point during their career. Is there something they know that I don't?

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28.06.2020