PC Skyrim players all must have a moment where they get bored of vanilla Skyrim and then look into mods. What happens after that key moment may be completely bonkers, depending on what someone actually decides to download.
Or at least, that's the stereotype people have about PC Skyrim players according to this parody by ClumsySaunter of how to mod Skyrim:
Fluttershy, nooooo!
How to Mod Skyrim Proper [parody] [ClumsySaunter]