Chantal Castanon was headed home after a long day at work when a man assaulted her in a subway terminal. Needless to say, he wasn't expecting her to react the way she did.

As she was walking down some steps to catch the train, Chantal passed by the man who groped her behind. "I felt the rage coming from my stomach, I was like what did he just do to me?" she told CBS2. "Did he really just touch me like that and he didn’t even care, just walked off like it was nothing."

Surveillance footage shows Chantal turning and chasing the man trough the station. She says that the man apologized several times as she kept punching him.

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