I'm getting this all the time as well and not in combat.
At first I thought the problem was that the Tiny Animats remained in areas without despawning when you moved so you got an additional one when you returned to the area. It seemed like in the stronghold where I accumulated more and more animats as I changed areas. But now I'm in Hearthsong, have unequipped all pets since before I got here, and have one or two Tiny Animats running with me all the time anyway. Except when I entered the market house and they both changed into cats, a pet I don't even have. These Glanfathans should recognise me as touched by the builders.