Have pity!

[a drunken Wu comes out and beckons to a rickshaw driver...] Chen:
Where to? Wu:
Home... [Chen takes him to a deserted street. Wu staggers out and *then* sees who his driver is] Wu:
[falling to his knees]
I was being used, have pity on me! Please, sir! Have pity... [Chen doesn't make a move, so he quietly creeps up behind him with his fist, but is struck senseless] Chen:
[scornfully]
Have pity!