1. It is believed that on the right shoulder of the person is his guardian angel, on the right is the evil forces, so spit on your left shoulder to avoid the evil eyes. And faith in Christianity is believed that touching a tree is equivalent to touching Christ, he was nailed on a wooden cross. Therefore, our ancestors in order for to please Christ to give them protection from evil forces, they knock three times at wood. Now if you know that something good happened to you, then you talk to others about this thing, and you afraid that after you said it, your smooth things will destroy, then spit on your left shoulder, knock three times at the wood and you can avoid being jinxed. This is common superstitions not only in Russia, but in Europe as well.