It Was Johnny's Turn For "Show & Tell". When The Teacher Asked Him What He Brought, Johnny Held Up A Thermos.

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It was Johnny's turn for "Show & Tell". When the teacher asked him what he
brought, Johnny held up a Thermos. The teacher wasn't sure where this was
leading, but asked him why his Thermos was so special.
Well, Johnny had this story to tell..."In the Summer, you put in ice cubes &
lemonaide and it stays cold all day. In the Winter, you pour in hot soup and
it stays hot all day." After Johnny finished he had a smug look on his face.
The teacher, still not understanding asked Johnny why that was so special.
To which Johnny replied, "Think about it teach...how does it know?"

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