Whoever smelt it
Consider the innocent people you will hurt if you ever decide to put your feet into someone else’s seat on an airplane. Do you believe they will enjoy the sight and scent of your feet without question? No, they will not.
It may even be a kid that has to deal with your big toes. Even though she had done nothing wrong, this young lady was subjected to a repulsive sentence. Imagine her reaction when you remove your shoes on an airplane for the first time.