I have Kitsunebi fatigue. I am tired of running one block in the open world and poof! there they are... but that's not the worse part, since I can equip a Quickstep and run by... it's when they pop up in the middle of an activity, and prevent me from completing said activity, since NPCs run away in all directions, and they go very far, then I have to spend time trying to find them, and they keep running into more random mobs... sometimes I just give up looking for them. The "best" is when they show up to an execution and kill the hostages. They even show up at the beginning of missions. Very annoying.
I don't know why the decision was made to not offer a toggle for this event; same goes for the overdrive events. We have to activate scouts, have toggles for modifiers, most other events.... the XP and materials events don't modify gameplay, so those aren't important.
/rant