Oh hai. Ceiling cat can seez you, rly!

Kitteh

Monkeyfister has more on the history.

When cats attack

(h/t Phydeaux @ Phydeaux & Phriends)

I has a programming language

Example code:

HAI
  CAN HAS STDIO?
  I HAS A CTR
  I HAS A BREAK
  VISIBLE “YO! HOW MANY KITKATS U WANT BETWEEN 1 AND 100?”
  GIMMEH BREAK
  IM IN YR LOOP, UPPIN YR CTR!!1 TILL 100
    IZ VAR SMALR THAN BREAK?
      YARLY
        VISIBLE “KITKAT #” N CTR N “!”
      NOWAI
        VISIBLE “CYA!”
        LMAO
    KTHX
  IM OUTTA YR LOOP
  VISIBLE “CIAO.”
KTHXBYE