Bonehilda

Bonehilda is an NPC that was introduced in Makin' Magic and later featured in The Sims 3: Supernatural.

The Sims: Makin' Magic
There are two versions of Bonehilda in the game. One is the janitor on the Magic Town lots A Spooktacular Spot and Vernon's Vault. The other can be bought on residential lots as a magical (and much cheaper) equivalent of Servo. This version of Bonehilda is literally a "skeleton in the closet".

While the "skeleton maid" version of Bonehilda is generally equivalent to Servo, there are significant differences:

Things Bonehilda does that Servo doesn't
 * Feed a baby. Somehow, she manages to do this without waking the baby.
 * Bring in the newspaper.

Things Servo does that Bonehilda doesn't
 * Garden.
 * Attempt to entertain visitors. In fact, non-magical visitors will freak out if they see Bonehilda in action. A walking skeleton is one thing in Magic Town, and quite another in someone's home!
 * Serve food.

Misc. differences
 * Bonehilda seems to place a higher priority on repairing. She'll probably repair a broken dishwasher or sink before trying to use it.
 * Players can send Bonehilda back to her closet by clicking on her and selecting "Dismiss".

Bonehilda also has a few quirks. If a bar is present, she'll take a drink before heading back to her closet. Naturally, the drink will flow through her and leave a puddle on the floor. If tombstones are present, she may wave to one of them before going back to her closet. She is also a fan of the Grim Reaper, and will try to get his autograph if he appears while she's out of her closet.

The Sims 3: Supernatural
Bonehilda made a comeback in The Sims 3 from The Sims 3: Supernatural and she plays a similar role to her role in Makin' Magic. She will act like a Maid like keeping your Sims' lot clean and cooking for dinner, and a "Sitter/Nanny" like taking care of your young Sims and pets and teaching your pets some tricks. The "Bonehilda Living Quarters" can be bought in Buy Mode.

In order for Bonehilda to do the chores, a Sim must "Awaken Bonehilda" at her living quarters. The Sim will wave a key, making her to come out of it. There are only two interactions between a Sim and Bonehilda. "Dismiss Bonehilda" will allow her to go back to her living quarters while "Chat with Bonehilda" will allow the Sim to simply chat with her.

However, Bonehilda is a NPC, therefore she cannot be a part of a household or a Sim's friendship panel, so she is remained uncontrollable.

Gallery
Bonehilda Brunehilde