Was she eating rats previously for sure? For a timid snake, I'd try to get either a rat pup (crawler) or a mouse (young hopper)...something that won't fight back
effectively. Maybe she will gain confidence that way? Not that I can speak for scrubs (no experience with them) but some snakes just need to get a taste of the
right thing, something they can easily over-power before they move up in size.
The breeder said ft small rats. But these experiences leave me to believe that wasnt really the case.
So my thought might be she was eating mice. And shes unfamiliar with rat scent, so shes just trying to defend, not feed?