Arelith

Was letting our summons and familiars fight a fight for me and my wizard buddy. when out of nowhere my pixie and his panther turn and started attacking us, and we hadn't dealt the first point of dmg as casters. So no spells couldn't have been friendly fire. I had found an old bug while, reading online, with the original game where henchmen and familiars with sneak attack would do this for some reason possibly same thing here?

so there are a number of AOE spells that aggro your own summons, things that effect all creatures not just hostiles, like Entangle, will set them off. darkness used to do it too. cone of cold can do it as well if i recall.