Chrissy to the boys: Stop aggravating your sister. You're on thin ice.
She walks back into the kitchen.
Marco to Rocco: Thin ice?
Rocco to Marco: What does that mean?
Guess that message didn't get across. Marco knows that Kim Jong-il is the president of North Korea, and Rocco can count to 10 in three languages, but looks like it's time for a lesson in American idioms.
