Deciding to do an electrical job yourself without the proper training always comes with a certain amount of risk, but you can see why people who like to do things themselves and have money concerns may want to look into this. If this is a decision you’re thinking about making, then you should definitely dedicate a fair amount of time to studying up on electricity utility issues, particularly where your health is concerned.
While for trained electricians, doing their job is quite low on the risk scale, but if you don’t have the proper training then the level of risk skyrockets. Making sure that you have the necessary equipment and understanding so that you don’t get hurt is paramount. Even so, electricians will at some point or another suffer from an electrical shock, so you shouldn’t expect that you’ll be able to remove the possibility of getting hit either.