As a couple of others have said, sometimes I'll give a quick rinse or blade off.
Depends on how they speak to me.
In the case of this fella making demands or threats to you, he'd have got nowhere with me either.
Important to keep your cool though and remain polite. I usually make them feel quite silly by explaining to them that had they spoken to me in a calm and polite way about any issue they had I'd have been more amenable, but as they've just come out all guns blazing effin and blinding at me THEY CAN DO ONE