Love my STUPID cats!

I love to call my cats "STUPID cat".  I used to love cats a lot.  Nowadays, the feeling toward the cats went away just like that.  Whenever I see a cat, I will call it "Stupid Cats".  However, what happened to my cats was they thought that "STUPID cats" is a name for me to call them.  They reacted whenever I mentioned "STUPID cats".  < sweat  -.-!! > I really don't know how should I react toward them: angry, funny, or annoyed.  Hahaha!