My kitty has gotten spoiled when it comes to going outside to play.
As she's gotten bigger I've been letting her out more and more often
to play in my big backyard.  Now she always wants to go out, and
has learned how to get her way.  She'll stand by the door and look
out anxiously, then if I refuse to open it she'll start tearing
through the house, jumping all over everything, and meowing crazily.
She apparently knows this drives me nuts and that I'll kick her
out of the house.  Hours later I'll have to call her over and over
before she decides to come in.