Chinese version of "No Quid Pro Quo."

What does it mean when Trump says “No Quid Pro Quo”?

All the talking heads waste their time arguing that it’s a lie, and that there was a “Quid Pro Quo.” Trump doubles down and repeats over and over that there was “No Quid Pro Quo.” It becomes a shouting match between morons. My father taught me never to argue with a moron, because others would not be able to tell who is the moron. These geniuses do not know that in China, “No Quid Pro Quo” is an admission of guilt. 

I learned this Chinese idiom when I was growing up in Hong Kong. 

​Smith and Schwarz are neighbors. Schwarz one day comes into an inheritance of 300 ounces of silver. He doesn’t trust banks, so he buries the silver in his garden. Schwarz can’t sleep because he worries that his neighbor Smith might steal his silver. Therefore he puts a sign in his garden saying “there is no 300 ounces of silver buried here.” Smith passes by Schwarz’s garden every day. He can’t help but notice the sign. He laughs, “What an idiot. I’ll get rich on his stupidity.” Next morning, Schwarz goes to his garden and finds a big hole where the silver should have been. Beside the hole is a sign that says, “your neighbor Smith didn’t steal the silver.”
本地无银三百两 - there is no 300 ounces of silver
隔壁张三没有偷 - your neighbor Zhang San did not steal it
No Quid Pro Quo - I sold America down the river, dupes.