I had a similar experience last night and other times previously. My BCI and scrub were both in their hides at feeding time last night. I lifted their hides and offered the rats on tongs. They both ate just fine. I've also had to turn on the cage led lights a few times when feeding my carpets, bulls and olive. It's tough seeing where the sharp end is sometimes so I either turn on the cage or room lights until they take the prey then it's back to lights out. I didn't know that could make them not eat. Luckily it hasn't been an issue yet but I'll definitely be more mindful.