eat faster somebody's brain

Faster, eat faster.
Hurry up.
No question. No play. Eat faster.
...
Sharing a table with me at the breakfast restaurant were a father and a son. The son was about 3-4 years old. Put in front of them were plates of dumplings, pickles and bowls of soya bean jelly, which is called in Chinese 'doufu nao'. Doufu is bean and nao means brain.
son:Dad, why is this called doufu nao?
father:No question. Finish it quickly.
son continues:whose brain is this?
father:No, no, not human brain. It's beans'.
son: why brain?
father:Faster you go.
...
I was guessing then: it must be named after its shape. Even the father's brain. He's been pushing the boy and repeating almost every five seconds, while the boy seemed so used to it. He kept his pace and raised questions, too. As I see it acutally the boy was not eating specially slow. And when I was having my 'brain', so annoying it was as if he was ordering me that. Why can't give your boy and other people at the same table some easy time for a normal breakfast? Why does he have to rush maybe because of your own reasons?
It's one of your earliest life lessons, son. When you grow up, you will be one of : 20 or more passengers run and push each other to get on the bus when it pulls into the station; even it's red light people cross the streets as if they have something really urgent to do...
It's September. Finally I realize this when the bus scanner could read my month card for I forget to input money for this month. It's September 1st, a beginning of a new month. How time flies. Or we ought to eat our time and brain FASTER.