Instead, she works on the point system, where they get points for good behavior.

So he did his best to stay on good behavior.

Two years later, Michael is a study in good behavior.

With good behavior, the three men could be free within two years.

With good behavior he'd be out in ten or less.

There will be no time off for good behavior here.

I have no interest in anything but good behavior,' he said.

That was two years ago, a little less, but with time off for good behavior he must be out by now.

With time off for good behavior, she had been expected to serve 23 days.

He's on his good behavior where you and your mother are concerned.