So I wonder if you are maybe getting too much of your sent on the food item by warming it in your hands. Not sure I would want the little one to associate my sent with food. I could be wrong though as I am getting back into snakes after a decade off. It is commonly recommended to use a hair dryer to warm up pray items before offering. I have a 6 month old that is only a few weeks with us that acts afraid of the rats and has only struck out once and I think it was a defensive strike and not a food strike. I leave it on a fake leaf after doing the zombie dance for a minute and then a quick re-heat with hair dryer in front of his hide about 6 inches. So far he has eaten 2 within an hour or so after we leave with all lights off.