My sulcata, Rudi loves being at my side now. She crawls all over my feet and rubs up against me when I'm in her pen. And she even comes to the gate of her inside enclosure when ever I call for her, but she never let's me pet her. Whenever I so much as stroke her shell she cowers inside as fast as she can. I've tried letting her smell me first, but even getting close to her face is too much for her. She eats of my hand too. Any advice for why she's so shy?