Oh man, I have that happen to me sometimes, with bonus weirdness because I mostly write fanfic completely unrelated to my own tastes; I do it mostly for others, according to their tastes and requests. (My favorite way to do this is anonymously. Then I get to just drop a present on their head and gallop off into the sunset like the Lone Writer, mwahaha.)

So half the time, my fics are based off Wiki binges, very old scattershot memory, and Youtube videos ANYWAY.