One day while out shopping, Paddy sees a metallic cylinder on the shelf. Not sure what it was he asked the shop assistant what it was for.
"Thats a Thermos Flask" replied the shop assistant, "It keeps hot things hot and cold things cold".
Paddy is amazed and buys one immediately. Next day at lunch John asks him whats is the Metal Cylinder.
Paddy replies "Thats a Thermos Flask, It keeps hot things hot and cold things cold.
"Thats great Paddy, What have you got in it?" asked John.
Paddy proudly replies "Soup and a Choc Ice"