My favourite Poirot scene:-
There is a knock on the front door of Poirot’s apartment. Poirot opens the door to reveal a deliveryman, holding a birdcage. Inside the cage is a parrot.
Deliveryman (broad Cockney accent): ‘I got a parrot ‘ere for a Mr Poyrott.’
Poirot: ‘Zat ees pronouncéd Pwarroe!’
Deliveryman: ‘Awright, guvnor. (Clears throat). I got a pwarroe ‘ere for Mr Poyrott.’