I remember when I was in high school, my foreign language teacher had a baby by the athletic director. Well, a couple years later, he starts messing around with this substitute. I don't know if other students noticed, but we talked about it in our class for the whole period sometimes. Now, some would say that interfered with our educational process. But it didn't, because our ENTIRE conversation had to be in French. Man, that was the BEST class!!! There were only 3 students in the class, so it was intimate. We talked about our relationship issues, too, all in French.
But like Soror AKAtude said, if the PRINCIPAL is acting different, cool out, soror, COOL OUT!!!
