I have a Rosy boa that is around 1- 1.5 years old. He has always seemed healthy and has always been a good eater/pooper, but occasionally instead of a normal defecation I will find a disgusting blob of goo in the tank that seems to be an almost-completely-digested mouse. This is always almost a week after the feeding, when I would expect him to defecate normally. Sometimes a few days later it is followed by a normal defecation. Since it is so long after feeding, I don't think he is regurgitating (which happened a few times when i first got him, so I know the difference.) However I have never witnessed whatever is happening when he does this. I havent been too concerned because it doesnt happen often but I was just wondering if anyone else has had this experience or knows what is going on? His temps are good and he seems quite healthy and happy otherwise.