Actually, the wording wouldn't be "why can not you get me some ice cream". It would be "why can you not get me some ice cream". Just because a contraction is used does not mean that the word and not are next to each other.
20 Day Disney Princess Challenge Day A scene that makes you cheer - When Anna punches Hans. He tried to kill her, her sister, and take over their kingdom. He deserved more than a punch in the face, but still, go Anna! Dying laughing at the pause!