Don't have unreachable code!

example.md

I said I hated the code on http://imgur.com/gallery/ZM0lYhb/ and StillNotYouTube asked for a better explanation. So here it is

if (foo == bar) {
  return "foo is bar";
} else {
  return "foo is not bar";
}

Is bad form. I would like:

if (foo == bar) {
  return "foo is bar";
}
return "foo is not bar";

There's several reasons for this is better For example, in the first code example I have to worry what the routine returns after the if/else (i.e. I actually have to work out it's unreachable and that I shouldn't worry about that)