I educated myself today.
At work I was going through some online training. At one point it veered off from the welcome to the company stuff, and suggested/insisted I take a different online course.
This course seemed targeted towards sales people. I did it, and all the accompanying quizzes. I was totally exhausted by the end. In the regular course, common sense was a good guide. In the sales course, nothing made sense. Especially when trying to tell the difference between two sales pitches. The pressure and the confusion tired me out completely.
I have no idea how those sales people do it.