Category talk:Actor Behavior

Hey all.
I encountered a problem: I have a Cave Cell with a few actors in it. After a while I end up with almost every actor after me telling me that I should leave, they have things to do or to close up...
I think they take the cell as their own, however I didn't give Cell Ownership to anyone. I also set every actor's Personality to 100. I check all actors if they run the trespassing package as well, but they don't...
What could be the problem?