Time out? I'm worn out...

I put Rachel in time-out for hitting me, and when I came back 3 minutes later, this is how I found her. Obviously, I wasn't mad anymore when I saw her cute little chubby face. I guess she was a little tired, and hitting me was her way of telling me to let her take a rest. Actually she was in a hitting-pinching-screaming-tantrum phase that lasted about a month. She was in time-out many, many times. I guess she grew out of it, because I don't think I've even put her in time out for a couple of weeks now. I'd like to think she stopped because of our consistent parenting techniques...