Don't judge too harshly. Most fears are pretty irrational - and therefore difficult to control. A lot of people also react badly to being startled or surprised by something they're afraid of. She might have acted differently had she known.
I've been very good about keeping my snakes in places where people cant see them unless they absolutely want to see them. I understand being afraid of things - because no, I would NOT like to be exposed to a spider even in a cage. I'm terrified of them. Completely irrationally, I know they do more harm than good, etc... but I don't want to be surprised by one for sure!
Be respectful of people and their fears, and you'll be surprised with how many people will return that respect to you and your animals.