Introduction, and collection of lit

[JWHooper]

Hi my name is JWHooper, I keep books that collect stuffs as in the story, legends, or poetry... It is often said that a warrior poet cannot write innocence poem that can be compare to a boy or girl in theirs whatever, and same the opposite. One of this book of collection is puzzle. It would be nice if people here want to share some things. I will start out with an familar one which I modify somewhat to increase its level of difficulty ( and will be back to give it "solution" in the edit (I already have it, that why I post them)):

One cat is going upstairs. A man was reading a novel, but suddenly he threw away the book to garbage, because of the cat. Why?

Edit: Please note do not post the solution until you have figured out that it is different than mine and that it has to be a honest solution. Thank you very much.

Solution as in explaination: The man was realizing the biological truth that cats are blind & allergic to books of reality of biological truth behind literature.