Yesterday Yumin's barking called my attention to a 青蛇/Green Snake (cyclophiops major) going about its business peaceably.
This is a non-venomous snake. Some people scream and panic at the sight of any snake, but even poisonous snakes have better things to do than bite you. Keep a distance and don't make trouble. If you can conquer your fear, you can enjoy the beauty of these magical creatures.