Kelly escaped injury and managed to save her car after a four-foot-long rat snake came out from under her car seat and slithered across her feet as she was driving down the highway. Rat snakes are poisonous or a threat to people generally。 (1) But the woman says the snake she encountered Thursday terrified her out of her wits. (2)"It was rough with big scales," said Swisher. who was on her way to pick up her friend at the airport when it happened。 I don‘t know whether I had my hands on the steering wheel or not。 I’m not the most flexible person in the world， but I can guarantee my knees were up next to my ears。 She said the snake first slithered back under the seat and she hoped it would stay there until she was able to get off the high way and stop。 That didn‘t work out， she said. "Here he comes， and he wound up in my back seat before I could finally get off the road, stop and get out of the car." She called for help. And Washington county animal control officers came and captured the snake.