There was once a rich family that always eat together. But the Grandfather is so old with shaky hands that he always broke expensive plates and glasses in the dining, the way he ate his food gave a disgust looks at the couple.
After that repeated incidents the couple decided to hire someone to make a wooden table set for the old grandfather, specially a wooden bowl for him.
And they let the grandfather ate by himself on it's own table, in a wooden bowl, beside their table.
While the couple is so relief while eating their food. Their only son looked curious gazing at his grandfather eating alone with his food in teary eyes. But still he can't ask why.

One day the couple saw their son carving something out of a wood and ask him what is it' the boy replied,

"I'm making two wooden bowls for the both of you, so when you're like grandfather you'll have something to use while eating."

The couple realize that what they did was wrong, and asked for forgiveness. They let the grandfather eat with them again and the little boy saw the happiness of his grandfather.

I've read this story once when I'm having a NAT test, I remember that my friends were asking me why I'm so teary and I told them 'bout this story and I end up a little upset cause they didn't know the story and just pick random letters on their questionnaire for answering..
It's a long time since I've read this, but it really got stuck on my mind.
I don't know who made this story, but I write it the way I've remember it.