Sunrise and sunset at the Southern polar latitude is from a separate rotation to daily rotation -

http://www.timeanddate.com/sun/antarctica/south-pole

The radius between North pole and circle of illumination is now approach zero and after the Equinox the circumference where the Sun remains in view each 24 hours expands until it reaches its maximum circumference known as the Arctic circle.

The proliferation of celestial sphere descriptions of the Equinox using a tilting circle of illumination and the motion of the Sun North and South of the planet's daily rotational Equator where the circle of illumination pivots off the Equator is both recent and disturbing -

http://apod.nasa.gov/apod/ap140319.html

On the other hand there is the gentle appearance of the Sun at the North pole dictated by the orbital surface rotation behind it -

https://www.youtube.com/watch?v=okw6Mu3mxdM

There is no need to be thugs anymore unless people take perverse satisfaction in vandalizing astronomy and its work principles which include two separate day/night cycles arising from separate rotational causes. Somebody has to feel that both and sunrise and a sunset is a consequence of a turning Earth and in this way feel human on account of recognizing our planet's motions.