On the bookstore wall

Seen on the wall at Crossword: `There is no spectacle that is as terrifying as the sight of a guest in your house whom you catch staring at your books'

A man accompanying his wife on her book store visit altered this to: `There is no spectacle that is as terrifying as the sight of my wife in the bookstore, staring at these books!'

No prizes for guessing who the man and wife were. They were - my husband and I at the bookstore the other day. Again, I did not buy a book!