JeffNOK,
Reading between the lines in your original post, I suspect that this new behavior of Gracie's might have come at a time when light levels were low or maybe near the time she normally retires for the night. My 15 yr. old cag, who is not bonded to me, readily allows me to handle her (getting her out of her cage, transporting her from room to room etc...) but does not let me touch her below her head. She'll let me scratch her head 24/7 but don't think about touching her anywhere else. But when that Miller High Life sign grows dim, I'm her best buddy. I can touch her from head to tail and belly to back without fear of losing a digit. The transformation is amazing. My .02 cents, it's their roosting instincts. They want to be near others primairly for safety but probably for companionship also. So play her a love song, keep her glass full of whiskey, and if that high life sign grows dim, Wait, apply that elsewhere. Seriously, try working with her under low light conditions after her nomal bedtime. You might be surprised.