Exactly, imagine if we had food robot delivery and it worked like 99.999% of the time, but 0.001% of the time it consistently maims or murders the customer. How

Exactly, imagine if we had food robot delivery and it worked like 99.999% of the time, but 0.001% of the time it consistently maims or murders the customer. How many 9s are enough? How do you punish and regulate the large entity behind the bulk main&murder?