handling and removing snake from tank..

[thesnakeinblack]

i have had a king snake for about a month now, she is a couple months old, i have held here and taken her out a few times, but most often when i try to remove her from tank she gets aggrevated, she doesnt strike or go into a threatening position, but she does rattle her tail, so i usually stop trying and wait a day or two, still with difficulties i went and bought a snake hook, she responds a little better to this but still gets a little agitated, am i doing something wrong? when she starts rattling her tail should i let her be? or should i still try to get her out and handle her to show i mean no harm? i thought as she got more comfortable with her tank she would ease up, any advice or tips?