The next day he hears a knock at the door again. When he opens it, the
little Japanese man is back with a huge truck of brake pads. He thrusts
his clipboard under Nelson's nose, yelling, "You sign! You sign!"
Mr Mandela is getting a bit hacked off by now, so he pushes the little Japanese man back, shouting:
"Look, go away! You've got the wrong man. I don't want them!" Then he slams the door in his face again.

The following day, Nelson is resting, and late in the afternoon, he hears a
knock on the door again.
On opening the door, there is the same little Japanese man thrusting a
clipboard under his nose, shouting, "You sign! You sign!"
Behind him are TWO very large trucks full of car parts.
This time Nelson loses his temper completely, he picks up the little Man by
his shirt front and yells at him: "Look, I don't want these! Do you understand? You must have the wrong name! Who do you want to give these to?" The little Japanese man looks very puzzled, consults his clipboard, and
says:

(Get your best Japanese accent ready)

"You not Nissan Main Deala?"