She is a real hard ass tough slut for sure. She also spits like she's been doing it all her life. Plus, at almost 6 feet tall she has probably been whoopin' ass all her life and her reaction here was simply automatic and she probably didn't even think about it, she just did it. It's clear you don't mess with her. I suspect she has a bad temper as I have seen her get pissed in other movies but it never got physical.