Re: Weird choice, really..
I would not call that person the victim, as it is she who is wearing the devices and does the stepping. And I would refrain from such an action when said girl is in earshot. Those shoes hurt. A lot. As a former ballroom dancer (standard and latin) I know how much. And that's only on the arch of the foot. And accidentally, but with quite some energy behind it.
So mind your manners...