A very long time ago I did my PPL at a certain flying club in South Yorkshire, now defunct. We ( a flying scholarship course) lived on site, so there was lots of socialising. The club receptionist was totally charming, and very extrovert.
The story we were fed, was that after a particular fling with a club member, she became pregnant. The resourceful culprit took her up to 10k', did a 4 turn spin one way, followed by 4 turns the other way. She went green, and the pregnancy was no more. Not nice.