The universal trigger for fear is the threat of harm, real or imagined. This threat can be for our physical, emotional or psychological well-being. While there are certain things that trigger fear in most of us, we can learn to become afraid of nearly anything.
Lack of education about risks
285g, hopefully it helps.
Definitely the flood. If a wire snaps or something, and comes into contact with the water, it can electrocute anyone who comes in contact with the surrounding water.