I think I have the meanest BP in existance. She hisses every time I enter the room. I've been bit by her maybe 2 or 3 times, and she has struck at me countless times. She is the only one that has bitten me out of spite and not eagerness for food.
I've been bit by another one of my normal females once when I smelled too much like an ASF. And had a similar incident with my female spider.