I actually know a guy from Hong Kong who talks like Chow Mein and then gets exasperated when you ask him to repeat what he said. After a bit, he gets frustrated and says: "What's the matter, don't you understand English?".
There's a classic one with Chow Mein and Bob Todd playing an Indian guy who takes a grievence to the labor board indicating that Mr. Chow Mein has unsafe conditions in his restaurant.