Unfortunately, even captive bred can get parasites as apparently some rodent breeders have them in their colonies. I’ve seen some indication this might not be that uncommon. Find a good reptile vet and take a fresh sample of the dark fecal mater.

Scars are a good sign of a wild caught adult but of course they can get scared in captivity. Temperament is also an indicator but I've seen ill tempered captive bred from time to time. It's rare but some recent wild caughts even eat right off the bat (younger probably helps). Of course captive hatched (wild bred) babies are even closer to captive bred than wild caught (animals that actually lived in the wild at one point).

I guess the important thing is that you take good care of it now as you may never know the history. Also, consider checking out any sellers for future purchases at http://www.faunaclassifieds.com/foru...amp;forumid=13 (you need to register and log in to see the threads). Hopefully you can find trustworthy sellers.