A few seconds later, they heard the bath water running.

It should have been easy months ago to separate baby from bath water.

But let's not throw out the baby with the bath water.

But let us not, as they say, throw out the baby with the bath water.

We should not, however, throw away the baby with the bath water.

We did not want to throw the baby out with the bath water, however.

Let us not throw the baby out with the bath water.

We don't want to throw out the baby with the bath water!

Well no reason to throw out the baby with the bath water.

But calling for bath water would mean having to open the door.