Grumpy Cat’s not going to be happy about this. Gothamist published a series of photos Tuesday featuring an adorable feline who starred in New York City subway etiquette posters in the 1960s. Etti-Cat (get it!?!?!) had a much better grasp of the English language than the LOLcats of today. THEN: NOW: Plus, Etti-Cat wasn’t perfect — even the a mascot for good behavior made mistakes sometimes: TLDR: Don't vandalize things. Etti-Cat also appeared in a 1965 book called “The Courtesy Cat” that touched on general manners.