One morning Nelson Mandella was drinking his coffee and reading his paper when there was a knock at the door. He answered it to find a Chinese dilivery man holding out a clipboard shouting 'You sign, you sign, you sign!'
'I haven't ordered anything, go away,' he replied, and shut the door. A while later he looked out of his window and noticed that there was a large container sitting on his lawn. He went out and opened it up, only to be surrounded up to his waist by a pile of car exhausts.
The next day he was having his coffee when the same Chinese man knocked at the door, shouting 'You sign, you sign, you sign'.
'Go away, and take that container with you!' Nelson said, and slammed the door in his face. A while later he looked out of his window and saw that there was now two containers sitting on his lawn. He went out and opened the new one up, only to be surrounded to the waist by a pile of car wheels.
The next day the Chinese man knocked on the door again, and when Nelson answered, he shouted 'You sign, you sign, you sign!'
'Look,' he said, 'Bugger off, and take these containers with you! Who are you supposed to be dilivering to anyway, because I haven't ordered this stuff!'
The chinese man waddles off to his truck, and returns with another clipboard. He runs his finger down it, and says 'Nissan Main Dealer'.