Eugene police sergeant rescued a pet shop owner from the coils of a 12′ python.

Teresa Rossiter had reached into a cage Thursday to show the huge snake to a customer when it bit her right hand and coiled around her left arm to throw her to the floor.

A friend who happened to be at the store kept the snake off her neck and body while police were called. And when Sgt. Ryan Nelson rushed into the store, he was ready to kill the snake with his knife.

But Rossiter asked him to spare the expensive python, so Nelson put on gloves and pried open the snake’s mouth to free Rossiter’s hand.