One of my favorite professors in college was a self-confessed liar.
I guess that statement requires a bit of explanation.
The topic of Corporate Finance/Capital Markets is, even within the world of the Dismal Science, (Economics) an exceptionally dry and boring subject matter, encumbered by complex mathematic models and obscure economic theory.
What made Dr. K memorable was a gimmick he employed that began with his introduction at the beginning of his first class:
“Now I know some of you have already heard of me, but for the benefit of those who are unfamiliar, let me explain how I teach. Between today until the class right before finals, it is my intention to work into each of my lectures … one lie. Your job, as students, among other things, is to try and catch me in the Lie of the Day.”
And thus began our ten-week course.
This was an insidiously brilliant technique to focus our attention - by offering an open invitation for students to challenge his statements, he transmitted lessons that lasted far beyond the immediate subject matter and taught us to constantly check new statements and claims with what we already accept as fact.
I love this! Not only does it focus attention, it also teaches people to challenge what they hear from "experts" and to begin thinking for themselves. It also forces them to dig deeply into the meat of the learning.
Although this was a strategy used for a semester-long course, I think it could be adapted for shorter time-frames, even down to several lies in a single day-long workshop. I may be trying this in my next training session. . .