我哪知道 他有病呗
“How would I know? He's crazy, that's why.”
THE DIALOGUE REEL
赖三为什么要杀孟灵啊
“why would Lai San want to kill Meng Ling?”
我哪知道 他 有病 呗
“How would I know? He's crazy, that's why.”
可底下有人传
“But people are saying”
“Don't ask me such absurd questions; the guy is just crazy and there is nothing more to explain.”
Using '哪' in rhetorical questions like '我哪知道' reflects informal conversational Mandarin to emphasize that the speaker cannot reasonably be expected to know.
LEARNING CHUNKS & PARTICLES
How should I know?
A common, slightly blunt rhetorical phrase used to deny knowledge and deflect inquiries.
crazy / out of one's mind
Literally 'to be sick', but colloquially used as an insult to describe irrational or crazy behavior.
Indicates that the reason should be obvious or is treated dismissively as trivial.