From the internet, wikipedia...See Alfred Korzybski, and/or General Semantics
One day, Korzybski was giving a lecture to a group of students, and he suddenly interrupted the lesson in order to retrieve a packet of biscuits, wrapped in white paper, from his briefcase. He muttered that he just had to eat something, and he asked the students on the seats in the front row, if they would also like a biscuit. A few students took a biscuit. "Nice biscuit, don't you think", said Korzybski, while he took a second one. The students were chewing vigorously. Then he tore the white paper from the biscuits, in order to reveal the original packaging. On it was a big picture of a dog's head and the words "Dog Cookies". The students looked at the package, and were shocked. Two of them wanted to throw up, put their hands in front of their mouths, and ran out of the lecture hall to the toilet. "You see, ladies and gentlemen", Korzybski remarked, "I have just demonstrated that people don't just eat food, but also words, and that the taste of the former is often outdone by the taste of the latter." Apparently his prank aimed to illustrate how some human suffering originates from the confusion or conflation of linguistic representations of reality and reality itself.[1]
