Keep him from being hungry...Think of him as a hulking moody kid, if they are full they are less likely to bit. A time out box after the scruff and drag works wonders (not a pet carrier as they will feel they are being punished if they have to being taken out somewhere like the vet) only give time out for a couple of minutes or he will just go to sleep.

Search for a local ferret rescue near you, they will give you all kinds of support and advice. A kit is a no no for first time owners, we run a rescue and get so many kits in due to people becoming scared of them cos' of the biting. An adult ferret from a rescue is the way to go.

Wish you loads of luck and try to persevere through the pain (ouch!!)