Outside of my books, I talk like such a flowery, sweet person. I've written grotesque scenes including one where a character is stabbed repeatedly, then electrocuted to cauterize the wound so he wouldn't bleed out during the torture. (Funny enough, not my novel Cauterized.)
I'm one of the nicest, most loving people you could meet, but my writing is generally really dark. I guess I cast out my bad into my writing??? It's a transfer. Very effective.