Sometimes you have to.
An old friend of mine brought her new friend from the PTA or somewhere round - ‘she’s new in town, she doesn’t know anyone’ - fine. White South African, fine - interesting. Big mistake thinking that might lead to a satisfying conversation. After she’d shared her thoughts on emancipated ‘blacks’ and how shocking she found it that so many black people in London were professionals who expected to be treated as her equal, I asked her to leave. She asked if I was joking, so I said no, I’m not joking, here’s your handbag [picked it up and pushed it at her], get out of my flat and never come back.
Later that evening, my friend rang to say I’d embarrassed her, that she’d had to comfort this horrible cunt, and how could I…I put the phone down.