When I want to invoke it for performance reasons, I start by building up a strong sense of entitlement. "I am more important than everyone else, I am special, I am right, I deserve deference, I deserve special treatment, I deserve satisfaction at the expense of others," that sort of thing. Then I look at the things in my environment that violate that sense of entitlement. Offense (or outrage, if I make the differential high enough) follows naturally for me.