Discipline in our house is largely about choices, as in "Talia, you can either pick up these blocks like Daddy asked you to, or have a time-out. Which is it going to be?" (Of course, when she picks time-out, she still ends up having to pick up the dang blocks anyway, which seems like a raw deal if you ask me, but she hasn't figured that out yet.)
Apparently Talia gets a sufficient number of time-outs as I routinely notice her giving her babies time-outs. She puts them in the time-out spot and tells them "Two minutes!!!" - then goes and presses random buttons on the microwave as if she's setting the timer. It's pretty cute.
And as if that wasn't enough to prove she understands how the time-out works, last night at supper she kept trying to reach out and grab my steak knife as I kept moving it further and further away from her. Finally, she looked at me and said very sternly "Mommy! You give knife ME, or TWO MINUTES!!"
She's going to be a great Mommy someday.