I work in a library and sometimes I'll bring a book home and won't realize that it has been in a house with other cats until my cats see it. They all have different reactions.

Weezie - She screams and hisses at this scary square cat.

Grey Girl - rubs up against it and loves on it as if telling the book, I'm sorry you're an ugly square cat.

Eepie - Huh? Cat smell? Huh? Where's my chow? Ah, I'm going back to sleep.