Roo versus a snake much bigger and more dangerous than that turtle

Whidbey Island was carpeted in quick-slithering garter snakes. Rooki put the nose to one or two of them, but she listened to my admonitions to leave them alone, and, eventually ignored them. I tried to use the garters as a prop to teach her to steer clear. Maybe it paid off: when this four-foot-long guy appeared at Angostura Lake in South Dakota (ignore the question about what it is - it's a non-venomous Eastern Yellow-Bellied Racer Snake), it was good to see that the Great Golden Conquerer of Every Mouse on Earth didn't get excited. I hope she'll be as unprovocative if she ever encounters a faster, aggressive snake. Ignoring them is not the same as avoiding them, but this was encouraging.