Basically some people will alwasy try to be the Alpha Male or Alpha Female and attempt to run the show. Don't let them. It may take a sidebar. Eventually they could become a great aid in the Lab. Don't let them steer the conversation. Some of them have an attitude where they think because they are paying to come they get to run the show. You have to quickly quell that and explain to the class that they are paying for a specific content, they do not get to decide what it is, how it runs or the results. They are they to learn the content we are providing for that particular trade.
