I only have one girl that breaks the rule. I got her as an adult that only ate live. I tried every known method to get her to eat FT. Nothing worked. So, I decided to establish a pattern to get her to eat. I would throw her in another tub let her see a live rat and get her good and fired up. Then I would drop the rat in and boom. I then started doing the same thing with FT. Eventually I got her eating FT in her own tub, but every year, after she drops her eggs I have to go through the same thing to get her eating in her tub again.