I made my city and have several custom npc's in it. Every so often I hear one of them with a robot souding voice say something like "Hey, troll-bait." or some other lines that I can't quite make out. I am not drunk, I swear! Has anyone else heard this and if so, how do I get rid of it?

It is dialogue from the throw voice shout most likely.

Don't put them in the PlayerFaction.

I removed them from the PlayerFaction and that did the trick. Thanks!