If you're concerned, just hook train her. And if you're really concerned, quit moving her on feeding day. I had my boa for 20 years, and the ONLY time I was bitten was the day I reached in to take his tank-mate out on feeding day (bear in mind, this was 25 years ago). My 5-foot (at the time) boy mistook my hand for dinner and latched on. It hurt, I froze, and George let go after about 90 seconds. A few bruises and some hydrogen peroxide, and it was like it never happened. BUT - I promise you I never reached in his cage bare-handed again.