Just for everybody's edification, I did kill off the Witch Doctor but whenever I would return to the hut it would resurrect him in the state that he died, and then he would proceed to work on the appliances and getting electrocuted over and over and over again.

I successfully deleted him using SimPE which restored the Witch Doctor back to normal.

An interesting artifact about the Witch Doctor is that he would get a new voodoo doll in his inventory every time a lot was loaded.  I ended up with about fifteen of them before all was said and done, and now they reside with the sim the witch doctor was living with.

Yep yep, no kidding... but that stupid bug having random NPC's wander by at all hours of the night was so tempting.

After flexing my brain a bit I've managed to figure most of this out.

This group certainly operates using "tough love" eh?  (Not that that is a bad thing.)

Thanks for the help.

Where can I get SimPE and the lot debugger?

So a wonderful bug that with Freetime, you know, the one where NPC's come hanging out at your Sims house in the middle of the night.  I decided that it might be fun to have a witch doctor live in the back yard, so I used the addneighbortofamily cheat to add him.
Now I can't get rid of him, and his character file is altered so that whenever I go to the mysterious hut on Twikkii Island he constantly attempts to repair his appliances and won't stop.

Is there a way to reset his character file or something to get him back to normal?  Or do I have to nuke my game and start over?

Any help would be appreciated.