I have been feeding outside the tanks for about 3yrs now, and never once have been bitten or threattend by my snakes. I feed them in a rubbermaid tub with no hides or anything as soon as they re-aligne there jaw i pick them up gently, and add support to the part of there tummies where there food has stopped at. I don't wait 30-45 minutes. it is usually about a minute average. But i have been bitten once in 3 yrs, and it was my fault, he was de-stressing, shedding, had an RI, and had mites. So he couldn't see what he was warning, but i asked for it. And no way related to feeding time.

On a second note i also dangle the rats/mice, by there tails, because i feed live food, and i don't want a rat/mouse bitting my snakes. If by chance they bite to high on the rat/mouse and i think it could be possible for it to bite them, i simple just grab the rat/mouse by the fur on the back of its head, and pull back, so it cann't bite my them.