Gotta be tame mate, i've got one here now that is the least tame i will have and shes absolutely fine, never bitten, not bothered by being picked up or handled really, but can sometimes be startled by something coming from above and behind and has a quickness about her that can be a little unsettling. But all my ferrets should be able to ride on my shoulder, have meet scraps pulled from their teeth and play fought with without a bite.
Jai.