My very first BP years ago decided to get herself stuck in the locking mechanism of a fold up table when I was very new to the hobby. She got about 6-8 inches of her body in and then her little chunky self just wouldn’t fit anymore. I very gently and carefully wiggled her backwards (which she wasn’t a fan of) and got her unstuck. Panicked me, but she was no worse for wear. It’s one of those things where you just have to stay calm. I never had any trust issues with her until the day she passed. Just give your kiddo a bit to calm down, and relax. If she seems nervous just be patient with her. Hope all goes well!