Twin Towers
I heard this about 3 days after September the 11th.

Two blokes are standing at the water cooler on the 35th floor of one of the towers of the World Trade Centre on 11th of September 2001. They are discussing their favourite flavours of crisps. Bloke 1 goes "In all honesty I prefer salt and vinegar flavoured." Bloke 2 replies "well my favourite flavour is PLANE!"
(Pfft_Of_Course_We_Graduated_COCK_Beer?, Tue 24 Jan 2006, 18:34, Reply)