You were very afraid of Poles. I went to DDR for summer language camp and they gave us a state handler. We were 15-16 yo kids! The level of indoctrination was stunning.
Hey, I went to a similar language camp, although it was in Poland, right on the border, organized by UNESCO. My impressions were the same. Initially we thought Germans were just kidding with their pompous Marxismus und Leninismus stuff. You know, the official part had to be the way it had to be, but on our own time we hoped to have some honest chat with other kids (I was also around 15/16 at the time). But that was a no go.
Some of the kids were honest (and frankly brave) enough to tell us they were forbidden from any kind of political honesty, and from entering any personal relationships with Poles. These kids screamed fear in their eyes.
Long story short, there was some intervention from DDR Ministry of education as a reaction to Poles being a little bit too honest in their political views.