A couple of my toons use the Shamatic Totem of Splinterskull (from Tangleroot Gorge) to do the Summon Monster III spell. Today I've been experimenting with the new summoned creatures, and discovered this:

When I choose the Air Mephit, my pet will summon fine. However, this will also cause an enemy Air Mephit to appear in the same spot shortly afterwards. This has happened to different characters in various quests which are not supposed to contain any enemy Air Mephits.

Has anyone experienced this happening with just the plain Summon Monster III spell, or might this be isolated to the Shamatic Totem of Splinterskull item? Has anyone else experienced this when summoning an Air Mephit with this item?