I have two Burms in one cage -- an 11 foot male and a 14 foot female. I have never had any real problems, but I readily admit that this is not the ideal arrangement by any means. I do separate them when feeding, and I have had some scary moments. They tend to sense when they are about to be fed, even though the rabbits are never in the room when I am separating them. I have had both snakes go in a feeding frenzy while trying to separate them, and fending off the big female while trying to remove the smaller male has led to some interesting incidents. Several times I have simply just had to back off and leave the room and let them realize it's not feeding time yet. When I'm finished feeding them, I usually leave the male in his feeding box for several hours, at least 12 hours or more if possible. By that time he's calm enough to remove, and the female has calmed as well. So far, I've never had the snakes fight, and I've never been bitten in this process (although I have been struck at numerous times). That being said, my wife and I just moved, and we are building a new home for my snakes at the new house. When it is finished (which should be in a few days), the snakes will be separated. Though it may sound hypocritical (and I guess it sort of is), it's not something you should do if you can help it. I've been doing it for over 3 years now, and I haven't had an accident. But I've been lucky, and my luck will one day run out. Hopefully, this arrangement will change this week and my snakes will have their own enclosures. And I don't plan on housing two big snakes in the same cage again. As I have learned, it's just too risky -- for you and the snakes.
RP