This is what I have observed. This I have seen to be true - You are not responsible for their unhappiness, nor for their disappointment. These are their's. These are from older seeds.
This is the greatest lesson.
The next is like it. You cannot control whether they are happy whether they are content with the answer.
So what can you do, but what you know to be right, what is said to be fair? Do not test this by their response.
This too is wisdom. This too is a sadness.
Some folk will not be pacified. Some are intent on rage. Proverbs 22:24 "Do not make friends with a hot-tempered person, do not associate with one easily angered,"