Master Po: “Ah grasshopper ... snatch the restaurant bill from my hand, if you can.”
Caine easily snatches it, because Master Po is a Chinese Mr. Magoo.
Master Po: “Foolish grasshoppah! When you learn to stick me with the bill, it will be time for you to leave.”
I like it, just get rid of the article to make it more realistic for people of that culture trying to learn English, as in below:
“When you learn to stick me with bill, it will be time for you to leave.”