Hypothetical qn: if u at soccer/bball court

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Play the sport or any sport can be badminton with stranger then the guy keep cursing.

And the person curse in ur face knnbccb or even more directly say f ur mum la u knw how to play or not? But its his fault dunno how to pass etc.

Say he scold not just once.. but twice then u warn him and he still does it again or sth.

Then u scolded him back he suddenly walks angrily towards u, what will u do? Back off? Run away? Or stand there wait to see what hes trying to do? As in u can see he might want to hit u liao. Or will u hit him first/right about the time he wants to punch you?