[Miros1]

1) The NPCs you'll be using this on are screwy anyhow. What's to lose?
2) BACKUP.
3) Open the neighborhood browser to find out what User_xxx.package file the Sim is in. Write this down, especially if working on multiple Sims. Also write down the filename of a playable Sim.
4) Close the hood, although you can open the Sim from the neighborhood screen. We're doing this S/W-Engineer-way.
5) BACKUP the Sim's file (User_xxx.package).
6) Open the playable's file with SimPE.
7) Extract the 3 BHAVs.
8) Close the file.
9) Open the NPC's file.
10) Delete all BHAVs.
11) Import the BHAVs from #7.
12) You backed up, didn't you? If not, this is your last chance.
13) Click Commit if necessary, then Save.

Or you could zip up the NPC Sim after step 4 and ship it to me...

Well, I'm off to re-dress all the gardner girls in overalls without shirts...