If you've ever laughed at improv being performed, it is nothing like the rush of performing improv, especially when it's not done well.

One of the more clever and disturbing ways to gain 'power' over an individual is to play the student in the master-student role. E.g. by having them teach you something - which is doing you a favor, you can gain their favor.

Ben Franklin: http://news.ycombinator.com/item?id=145544

For example, if someone is trying to sell you something you can have him/her be the expert and they may give you a better deal.