For some people Halloween is all about the costumes. Something either went very wrong...or very right in the following examples, depending on your pov.
So, that last one was doubtfully Halloween related, but it was awesome and therefore necessitated inclusion.
Apologies for not citing sources, but most of these are from multiple sites and I could not track down the proper "owner" - if it's yours or you know whose it is - please, do let me know so I can credit accordingly.
The title is a partial quote of Mark Twain's - "Everyone is a moon and has a dark side, which he never shows to anybody."