I feed her in a seperate tub in the same room. I have done this for months and this is the first time she has done this. There are no rodents in the room. But, my cat, who eats rats and plays with them all the time in my garden, slept in my room, and most likely during the night jumped on top of their cages because she was curious. She probably has rat smell all over her.

Could this be why?