On one of my first dates with the woman to whom I've been married now for 44 years, we were wandering the pavilions at the state fair when we chanced into the state parks exhibit. You know how big those barns are at state fairs. Anyway, we entered one end and got about ten feet inside when she let out shriek and jumped backward completely out the doorway. It was a solid ten foot jump in a single bound, and no, she did not turn and jump, she jumped backward. It seems she had spotted the snake in a terrerium at the far end of the building.
Now snakes do not bother me particularly, although I do watch out for the sharp end. To her credit, she does not want to kill them or anything, knowing they keep mice down. And they have as much right to live as any other of God's critters. They just don't need to be near her.