Hmmmm, i went to a catholic 6th form and was having some PSE thing with our form and a teacher (who was also a priest there) gave us all an A3 piece of paper and one by one asked us to draw a circle.
Everyone did theres all wonky, then it got to me, and I managed to do it damn near spot on, the look on his face was a strange one, he sort of looked shocked and said that anyone who can draw a circle that well has some sort of severe imbalance in themselves or something, or some religious codswallop cant quite remember what though. I half expected him to whip out a bible and try to perform an exorcism on me. Was a strange day that one, because he never would really look at me properly or address me directly from then on.
I can't actually remember what the purpose was for drawing the circle anymore, but he made me feel like I was some sort of anti-christ lol.