Electricity is dangerous because it is powerful. The same power when used properly to run a motor all day, make your dinner, or turn on the television, is more than adequate to disrupt the functions that keep you alive in that body. When sanity, knowledge, and safe practices are applied in the usage of electricity, it is AMAZINGLY SAFE! However, there are a number of folks who died because they didn't know, and did something that made them THE CIRCUIT, cooking them instantly. There is a reason the electic chair is used to put people to death --> it works. Don't run electricity through yourself ever. Learn how to avoid it. Turn off circuits you are working on. Back up before you turn it on. Use fuses and breakers. Follow all Codes. And PLEASE, BE SAFE!