On avg., for us at our dojang it is the Sabumnin (a 7th Kukkiwon dan) or, his assitant (3rd Kukkiwon dan) whom will run the show.
We usually have about 10 adults, and about 5 -10 teens & kids, that attend the evening classes. BTW, it's the best time for me to get to the dojang.
Whenever I go into the the dojang I want to train so F'in hard, but, some of my fellow students are just there because they have to be there (per their parents). It completely F's up the training... :shrug: