The breeding theory is somewhat interesting, given how the bites went. Once she started biting, I had a very hard time getting her to get off of my hand in general. If she was scared/feeling threatened/etc, I'd expect her to want to run back into her leaves, but presented with that opportunity, she just kept on hanging on to my hand with all 4 feet and biting. In fact, I eventually had to kind of herd her off of my hand, and she wouldn't quit attempting to bite until contact was completely broken. It was a very strange experience.

My understanding was always that it was the males that did the biting in crested gecko mating, though, and she is most definitely female, having laid quite a lot of unfertilized eggs over the last several years. If it is that she wants to mate, I don't really have the option of letting her, as I have neither a male nor space for a bunch of hatchlings.

Regardless, I remain confused by it. I guess I'll report back after I buy and use some alternate soap. Here's hoping that calms her down.