Samara Morrigan Royal Ball Python Hissed At Me

Someone gave attitude and hissed at me for the first time since I've had her. I heard it but I wasn't sure exactly what I was hearing or where it was coming from so I'd pull my hand out of her house and listen. I did that a couple of times until I realized she was hissing. She was fine after having her out within a few seconds and then she relaxed with some tongue flicking. If you listen closely she hisses twice. Once when I first touch her and again as I start to pick her up. That is known as a defensive trade in snakes.