David,
For me, I can relate to and remember similar situations. I found that being honest, genuine and sincere goes along ways towards minimizing the "me vs. them" environment. Being a natural version of ourselves helps keep students relaxed and more willing to go with the flow of the class. Also, I always try to keep information, stories, and lessons tie into the work setting. Nearly everyone "is interested in what's in it for me". So I try to share information in a way students can see themselves inserted into the situation.
Barry Westling