yume wrote: One shouldn't go around being rude anyway, right?
Wrong!!!!!!!!!!!!!!!!!!!!!!
At times, it serves purpose to being rude!!!!
You should know both sides esp. if someone is talking sh*t to you!
If that happens (and you "don't want to talk rude"), what will you say??
"Oh, excuse me, that isn't polite. Please refrain from speaking like that?"
-I don't think so...... (You'll get your @$$ whooped if you speak like that!)
It's always good to know the proper way, but at times, it also serves a purpose to know the "I'm gonna kick your @$$ way!"..........
But, "daitai", you are correct. "Nandayo?!"/"Nanda?!" is sufficient enough.
(I would just stay with "Nandayo", as it is more "rough")