I fed my ball in a separate container today just because I didn't want to put the live mouse in her enclosure. she didn't bite and once she was in there, she ate it in a heart beat and I let her digest a bit before picking up the separate container and gently put it by her enclosure letting her find her way out of it and into her hide. it honestly depends on the snakes personality I think and anyone who says this or that is purely just speaking their opinion. I personally want to feed her live separately because I want to be able to see what's going on but I plan on giving her frozen/thawed in her regular enclosure in the future.