"Another good option is to ignore the other party's attempts to intimidate you, because intimidation can only influence you if you let it. While this may sound too simplistic, think for a moment about why some people you know are intimidated by authority figures and others are not - the reason often lies in the perceiver, not the authority figure."
- Lewicki, Saunders & Barry, Negotiation, pp. 67
This is some solid, in-your-face advice for but-it's-easier-said-than-done spouters. Everything is more difficult than you think until you make the effort.