Burglars: Why they need to return and what can be done to improve/evolve the NPC feature

They could be triggered by a new lot trait called maybe Bad or Tough Neighborhood or something like that. That would work for everyone. You could take or leave it, or only use it in certain saves but not others.

I wonder how difficult it would be to increase the number of lot traits available for each lot. I wouldn't mind having 4 instead of 3.