Sometimes it's how you take it out of its home. Like already mentioned try using a snake hook. It's the best way for getting them out and handleing them. Try lightly rubbing it's head just before conditioning the snake for pickup.

Recently, I had my feisty Carpet around a guy who is HIGHLY experienced with 10's of 1000's of Retics of all shapes, sizes, and attitudes. He tried to pick her out of her rubbermaid for transport and he did it like she was a retic (smart snakes). She tried to bite him, Me smiling..... I told him I usually give her a little more time to get what's happening than that and he replied well she's a carpet. I just knew her particulars better than anyone and this is what it might take to bond with your Carpet. She is around 19 months old and only bite a couple times when I first got her as a tiny baby.

Hope something works for you that ends with you being pleased with her.

Charlie S.