"You aren't the boss of me!"
You've heard this before and kids say it to each other all of the time. I was not impressed however, when my son said this to me the other night! I was sorely tempted to reply, "I AM SO the boss of you," but remained calm as I simply stated, "Yes, I am."
"No! My teacher told us today that we are the bosses of ourselves."
Ultimately, I can't argue with that statement. He is responsible for his own actions and the consequences that follow when he doesn't do the right thing. I am assuming that there was some discussion along these lines in class that day, too as I can't imagine a teacher surrendering authority to 25 first-graders!
He still had to pick up his clothes and go to bed.