Looking for stories where spike has gone feral or turned into a child or has the mental age of one

Taste of Juliet by Peta. It's here on TSR.
Half way through the story Maggie Walsh tortures Spike until he is completely feral like the first Demon. She then gives him back to Buffy.

The Other Side of Midnight by Holly. Awesome

If you look at the found fics you'll find this topic. I'm sure you'll find a lot more there. You'll find a link to this story there if you need it. Enjoy!!!

Because He Needs Me by DreamsofSpike Rated: 18
Summary: Season Six, Post Entropy...After Spike's encounter with Anya in the Magic Box, Buffy's not sure if she can forgive him for the hurt that she feels -- until he shows up at her door, needing her more than he ever has before...where do a Slayer with iron walls around her thrice-broken heart, and a wounded, desperate vampire go from here? Who's really to blame -- for what's happened to Spike, and for what's happened between them? And somewhere, in the midst of it all -- can the two of them find forgiveness, and the love that they both need so desperately?