Years ago I had a customer who wanted electrical safety training for his employees. As we were talking about the course content, he asked, “What are you going to do to entertain the employees?”
This was in the early 1980s. You weren’t expected to entertain; the attendees were expected to pay attention and learn. I replied, “Nothing, electrical safety is serious business.” He suggested hiring a clown to perform while I conducted the training. I didn’t think that was such a great idea and I never heard from him again, by mutual consent. That guy was waaaay ahead of me! I was brought up old school — sit down, shut up and learn or else.