Funny, my BP has never bitten me. Not once. He also has never bit any of my children for that matter...strange seeing as our fingers look like food to him. My snake smells his rat and knows it's feeding time. I've never had him be confused bc the smell of the "other container" wasn't there. I don't see anything wrong with feeding in another container. I personally don't do it bc it seems to be more of a hassle than anything else. If this was a problem that BP's had (see your list) then everyone would be feeding in another enclosure. I do, however, have a routine for my snakes. When I'm getting them out of the cage, I move their hide and pick them up right away. When it's feeding day, I move the hide, move them over and let them explore a little. This has worked fine for my snake. He almost automatically starts looking for food.