Imagine classic wuxia scenes incongruously and humorously taking a sudden realistic turn.
Here's my offering, from LUK SIU FUNG BOOK 3 (BEFORE AND AFTER THE DUEL)
*Sai Mun Chui Sheut and Yip Goo Sing face off on the roof of the imperial palace.*
SMCS (hand on pommel of sword): If you please.
YGS: I cannot duel you now.
SMCS: Why not?
YGS: I think the food I had for dinner earlier tonight was spoiled. My stomach doesn't feel well, and I need to use the toilet.
SMCS: Fine. I will meet you here again one week from tonight.
*SMCS jumps away from the roof as YGS also floats away in search of the nearest toilet.*