Some friends of mine started to crank out some short poems and limericks relating to the infamous 'Little Willy', a sort of proto-Addams Family character who did all sorts of horrid things and often suffered awful consequences. A whole book of these was published back in 1915.
So, you know, creepy/gory fanfics are nothing new.
Some samples old and new:Willy with a taste for gore,
Nailed his sister to the door.
Mother said with humor quaint,
“Now Willy, don’t scratch the paint."
Willie smashed the baby's head,
To see if brains were grey or red.
Which prompted mother to say to father,
"Children are such an awful bother!"
Alas for little Willie,
We will not see him more.
For what he thought was H2O
Kitty in the oven slept
Willy baked him like a pheasant
Mother at the table wept
But Willy found him rather pleasant.
And here's a whole site of it. Look at the nasty things your great-grandparents laughed at!