I feed all of mine in their own enclosures..
the only ones that eat out of their enclosures, are some of my corns.. I actuall give them their mouse on top of their screen lid so they don't get aspen. But I really agree with thhis way being better due to less stress. And re: biting .. when I start feeding snakes, mine smell it / get excited anyway, so they are already in a "feeding" state regardless.