Andy Barclay: What are you doing?
Whitehearst: Polishing Sheldon's shoes.
Andy Barclay: He makes you polish his shoes?
Whitehearst: No, I offered out of the kindness of my heart.
At the beginning when Chuckie is turning on all the toys in the office, he flies a helicopter and the string is so visible its funny. The helicopter then crashes and you can still see it. In the next shot the man looks at it and there is no string.