Every one of my snakes are fed inside their enclosures. As Daybreaker said, there's no way in hell I'd try to move either of my Argentines after they've eaten. I like my blood inside my body too...........
I do use paper substrate, but have used aspen and have never had a problem either way - even if the rat is wet.
The boas are fed off 18-24" hemostats, but the balls won't eat unless I leave the room. So I just drop a rat in with them somewhere near the entrance to the hide they are currently in, and it's usually gone in a couple of hours. But the boas, well, crack open the tub, stick the rat in, and WHAMMO. Done. Love that feed response!
I've never been bitten by any of the boas - even the Argentines who can both do outstanding impressions of king cobras if they want. When there's no rat involved, I can just open a tub and pull out whomever I want. There's no food aggression at all.![]()