I almost chose persuade, but you can't directly defend youself with persuade.  So I  chose force choke.  You can persuade with Force Choke:  
  
 You:  I want a better deal, you will give it to me. 
  
Car Salesman: I don't think so, this is the best deal we have to offer you. 
  
Y:  You're not telling me the truth. 
  
CS: Uhhh sir, I . . .  
  
Y:  <Force Choke> Give me the damn car for free! 
  
CS:  gurrgle . . . crack . . . choke  yes . . . . . master . . choke gurrgle .  
  
  
  
I want to charge up all the womens loading ramps!!  After I get my free new car!  a lightsabre would be uber cool but  it would be too obvious in day to day life.  But Choke wouldn't. 
  
CS: bbut he used a Star Wars power on me! 
  
Cop: ookkkkkkkkaaaayyyyy, Why don't you come with me?  I'll take you to a nice place were people will take good care of you . . . .