(The man from Southend refusing to relinquish the engine without the money)

Sounds like a very sensible chap….

Buyer to Car salesman. ” I’d like to buy that Porsche 911 please”
Car salesman. “Certainly Sir, that’ll be £90,000”
Buyer. “Is it ok if I just take the car and let you have the money later?”
Salesman “Feck right off”:D