Ahh.. you said the magic word... "circuit" and (just guessing the .ch) that
I can assume you are not from the US, please correct me if I'm wrong.

The FAA does not require spin training for private or commercial pilots but
instead puts emphasis on stall/spin awareness. One of the primary areas
being the base to final turn because you are low, slow and if uncoordinated,
in trouble. It's stressed on every written exam and in every oral exam that
I've had. They stress what a quartering tailwind can do to you while on
base leg, how it can blow you past the extended runway centerline and how
incorrect corrections can get a pilot in trouble. I've seen students
incorrectly use rudder to try to "get back" to the centerline, it is
something that an instructor has to be aware of, stay on top of, and like
you say, keep pounding it into the student because the student simply
forgets. The closer your pattern is to the runway, the angle created
becomes greater and at the same time creates an "urgent" situation for the
student. He now is faced with a discussion. This is where an instructor
must teach the student not to feel committed to the approach and to perform
a go around.

Now, here's one for you.... yellow triangle? airspeed marker?

Jim - CFII