Minstrel

Agreed Chipolata. Revised version:

EXT - BUS STOP. A BLACK GUY (BG) AND A WHITE GUY (WG) ARE WAITING FOR THE BUS TO ARRIVE

WG TAPS BG ON SHOULDER.

WG: Minstrel?

BG PUSHES WG AGAINST BUS STOP AND SHOUTS

BG: You takin' the piss?!

BG KEEPS POINTING AT WG'S CHEST

WG: What?

BG: F*ckin' minstrel. Do you even know what a 'minstrel' was?

WG: It's just a sweetie -.

HE BEGINS TO REALISE NOW

WG cont# - Oh God.. No. I didn't -

BG: - and your telling me it's just a sweetie!

WG: - I'm so sorry. I didn't mean anything by it. I'm really sorry.

BG CALMS DOWN A LITTLE. HE TAKES HIS HANDS AWAY FROM WG'S CHEST

BG: Forget about it

WG: Please, Let me make it up to you

BG: It's fine -

WG: - No, here ...

HE REACHES INTO HIS POCKET AND HOLDS OUT HIS HAMD

WG cont#: Blackjack?

END

I'd make it shorter, maybe cut out the exposition where you explain why minstrel is offensive.