Most of the flightdeck want to go home as soon as possible. The majority are simply not interested in CRM at all. They will skip breaks and rush through stuff just to get finished and get home before the rush hour. Some are heard saying "what a waste of time".
I'm not surprised if they are trying to teach CRM and assertiveness in the classroom.
The place you need assertiveness is in the cockpit, not the classroom. The place to teach CRM and assertiveness is in the simulator. That way both sides of the cockpit have a better idea of what the training department believes to be an appropriate level and method of assertiveness.
All the classroom is good for is to brief and refresh the fundamentals.
FWIW, a F-111 crewman told me that their preferred method of getting the other guy's attention was to grab the other guy's oxygen mask hose and pull.
Now
that is being assertive.
