I feed only live, mice, ASF, rats depending on the animal. I have many that wont eat with the bin open and many that take before you even close te bin. I usually throw the rodent in the bin close and move on to the next snake. I pull all thei feeding cards, one so i can record and two so I know who got fed and to check. I have one femalee tha I have to leave the rat for about 10minutes before she will take it. I have never had an issue with a snake getting unjured. I never put a feeding card back on a bin untill I "clear" it so to speak and I know no live feeders are in there.