So out of curiosity I went through my fanfiction index page and cut-and-pasted all the warnings I've ever given on my fic, then sorted them into alphabetical order. It's quite amuing to see the sort of things I thought were worth warning for over the years.
See if you can work out which story the more outré warnings are related to...
Also, if you think any of my fic should have had a warning but didn't, by all means let me know in the comments. Both silly answers and deadly serious ones are accepted here. :-)
Bleak, dystopian tale, a (For certain values of 'bleak' and 'dystopian'.)
Butchering of Paleo-Bambi, the
Character death (x 3)
Character death (Buffy)
Character death, obviously enough
Concepts which some readers might find distressing
Discussion of teenage sexuality
Explicit sexual themes (and since it's set in a women's prison, I'll leave you to work out what that means in practice...).
Fairly explicit sex scene
Femslash (x 2)
Gratuitous product placement
I have no shame
It's my first time (and it's not something Buffy's done before either)
Mentions of sex
Occasional use of swearwords (but you already knew that, because this story has Faith in it...).
Possibly a happy ending, at least for some of the characters.
Pretty bleak and depressing
Reference to attempted rape
References to human sacrifice
References to System Shock
Relationships between people of radically different size
Set in season 8
Some fairly dark elements
Some naughty words
Sultry yet dangerous Latina lesbians
Troubled hero with a dark past, a
Use of medical terminology to describe body parts
Vague references to various squicky things that vampires did to the First Slayer's family in the past
Vaguely femslashy elements
Violence (x 3)
Willow having sex with a giant snake demon
* Yes, I consider that labelling a fic "Spike/Drusilla" constitutes a warning in itself.
Some people may consider that labelling a fic Willow/Kennedy is also a warning, but I disagree with them. :-)