My snake clearly regurgitated a portion of his meal from the previous week last night. I thought it was feces at first, but when I took it out it was definitely the remains of the mouse he had eaten the previous Monday. This concerned me because it doesn't seem normal for him to have the mouse in his system for that long. It was definitely partially digested, but I would have expected it to be out of his system "through the other hole" by now. Should I be worried? Was the mouse too big?