Smack them in the face and then run as if the IRS were after your ass. Levity aside, in my profession I've dealt with (and continue to deal with) some very arrogant people--many of whom feel that they're entitled to it because of their high-level positions, financial wherewithal, etc. Some of them I ignore as a matter of practice because I prefer to take the high road most of the time, but sometimes they get to me and I find my self putting them in their place in a respectful and civilized manner. Yes, it can be done. If you want to see it in action, go see a trial and observe how good trial lawyers draw blood in a civilized manner.