The reason you feed in a different enclosure is so they dont associate eating in their enclosure. Suposedly making it less likely for you to get tagged when you stick your hand in there home. Do you have to? No. Does it make you any less likely to get tagged? I think so. I have dealt with both and the ones that were fed in the same enclosure were def more likely try and get you than the others. I also dont have 300+ snakes to deal with. If I did then I would probably feed in their same enclosure.