Chinese Joke about a talking parrot

A man from the northeast trained a parrot. If you pulled his left leg, he would say “Hello”; if you pulled his right leg, he would say, “goodbye”. One day, the northeasterner suddenly wondered, if you pulled both legs of the parrot at the same time, what would he say? So, he gave it a try, and the parrot said to him, “Son of a bitch! Are you trying to kill me?”