At 8 weeks old i dont mind a bit of biting - its natural, but there is a difference between siting happily sitting on my and having a good old chew and biting because they dont like being handled. If i'm buying rather than breeding then i will look for someone who has a litter bred from two tried and tested workers who are both very hand tamed and good at their job, basically two ideal ferrets. I would also prefer to buy from someone who has had the line for sometime, preferably at least ten years, with 3 or more generations being worked. Looking at the kits they should all be active, healthy,