Neutral Monsters

[Shiva_]

If you make a neutral monster hostile (and don't kill it), you have to zone two areas before it becomes neutral again upon re-entering.

However, this doesn't apply to Elementals and Entites. I believe it's because they come out based on certain conditions (e.g. weather) of a given area. Elementals and Entites are neutral, and if you made one of these hostile by stealing from it, you only have to zone one area to make it neutral again upon re-entering. This was my experience when I was stealing certain key items from various Entites. The Entite would start out neutral and then I would steal from it. Right after stealing, it would become hostile. I then would hold R2 to flee and leave the zone. Once I re-entered, it was neutral again, and it had items available to steal again.

Although Elementals and Entites are neutral foes, they will get hostile if you use any kind of magic around them.

added:
If you kill any monster off (whether neutral or hostile), you have to zone two areas to get it to respawn again. If the monster you had killed was a neutral one, it will come back as neutral again when you re-enter.