What would a sotapanna do?

There are many arguments whether a sotapanna has a perfect morality/sila or not. But let's base this topic on this Sutta: > With what four factors of a stream enterer is he endowed? > > ...Is endowed with virtues that are not broken, not defective, not > spotted, consistent, not blemished, not enslaved, praised by the wise > as conducive to concentration and desired by the noble ones He is > endowed with these four factors of a stream enterer....Anguttara Nikaya 9.27 Now, for example, a deadly worm is in the stomach of a sotapanna's child. The only thing to help his child is to kill the worm otherwise his child will die. With his perfect morality, what would a sotapanna do, will a sotapanna (naturally) let his child die?