There was snow on the San Francisco Peaks and the city below had cold and strong winds. Even the locals thought it was cold. The desert rat who was teaching ethical decision-making had to scurry from car to training room.
As with most of my classes on ethics, attendance was mandatory. Make it optional and you'll find that few people will tell their boss, "I'd like to take a class on ethics," much less "I think I need a class on ethics."
But they do. All of us do. And when it is cold outside, a cozy training room can look very nice.