Actually my first boa was from a friend. Sad to say his methods of keeping were not good. She was in good health, but thing was he would throw live rats in for food. She had the tip of her tail bit good and small parts on her back. When I got her, she took right away to F/T, like she knew they would not bite back. Since then she has grown well and her scars have just about disappeared. Luckily her bites were not as severe.