I went to the local mini mart the other night, and two women were working.
The one was real chatty & friendly, and before I left, I jokingly said, "I don't care what your co worker says, you're alright!"
She turned to her coworker and said, "bitch, I told you don't be talking about me!" Then she smacked her upside the head with a bottle of BBQ sauce, started kicking the crap out of her, and scratching her face.

I left reaaalll quick.