Something my Dad always told me about my snakes as a kid thats always kinda stuck is that you dont want to feed a snake in its everyday enclosure. If you feed in the enclosure or tub your snake may start to associate you opening the enclosure with feeding time, and you may get bit or struck at.

That has always been in the back of my mind, so i always feed in a seperate tub. However, i know of and have even seen a lot of people who feed in the enclosure/tub.