The worst nightmare would definately be getting slapped around, stripped naked, and paraded all around for all to see. The Shame, the embarrassment, the Humiliation, would last a lifetime without a doubt.
Pictures would be taken, Videos would be taken and most probably, you would not get your clothes back. Made to walk home naked while everyone is laughing at you would be extremely Shameful. People think it's a joke until it happens to them, the Shame is unbearable, it never goes away. For the other woman is a totally, satisfying feeling and relief. To inflict Shame and Humiliation on her opponent, gives both arousement and comfort, knowing she put her to Shame, especially in a public place, such as an office building, Mall, Carnival, Block Party, Beach, etc.
In real life, you would not go back to work or back to that place it happened, I see some post for fantasy that they would, but it's not so much the fear of getting beat up again, that's Humiliating and embarrassing in itself, but the fact of being stripped and paraded for all to see while being pointed at and laughed at, would be way to Mortifying to ever show your face again. Majority would most likely move far away.