This teaches us that electricity can be a very powerful force, but we must never use it to hurt others unless we need to learn an important electrical lesson. It also teaches us how an electrical circuit works. The electrons travel through your bloodstream and collect in your finger, where they form a spark that leaps to your friend's filling, then travels down to his feet and back into the carpet, thus completing the circuit. But this is nothing to worry about unless you have carpeting. Organic chemistry is the chemistry of carbon compounds.
Biochemistry is the study of carbon compounds that crawl.
The more laws and order are made prominent, the more thieves and robbers there will be. When a place gets crowded enough to require ID's, social collapse is not far away. It is time to go elsewhere. The best thing about space travel is that it made it possible to go elsewhere. For every complex problem, there is a solution that is simple, neat, and wrong.