God said, let there be growth.
And there was abundant growth all over. Every thing grew. Fingernails even.
God said, let there be some control, however.
And there were inventions in abundance. Nail clippers, for example. But not everybody used them. They did not listen to the word of God. The over-smart people used overgrown finger-nails to cut other overgrown finger-nails, while watching a movie.
Then of course, things go wrong and you “hand-clip” a nail more than required; it bleeds!
God, ever-forgiving stupidity, said, let there be Band-Aid.