As a kid - I've put two really long (sweater sewing) needles into power outlet. I guess luckily I hit earth/ground with one of them - since we had differential

As a kid - I've put two really long (sweater sewing) needles into power outlet. I guess luckily I hit earth/ground with one of them - since we had differential (RCD) circuit breaker(s) installed it just shut off electricity in the apartment. If I managed to hit both into real live and neutral - the differential breaker wouldn't have done a thing, and I wouldn't be typing this.