This evening we got a visitor. An older male, whose human had to leave him for a couple of days. At ferret meetings, my ferret seldom fights with other males, apart from a few whom Rustan is afraid of.
I planned to be careful, and first let the "nicer" ones get to meet him. Total failure: Carmen, who usually is not much for fighting with strangers bit him hard and chased him around our home. From his squeelings it was obvious he definitely didn't want to be left here at all. So he had to be housed somewhere else, further away.