"It won't work on me, I am sorry to report. I pay too much attention. Nevertheless, I have faith in your ability to intimidate me."

All he has to do is make sure he is in the right frame of mind to be intimidated. Otherwise, Obadiah would probably have to work on him for days first just to get him there.

(It is not an entirely unpleasant thought. But why would Obadiah bother devoting the time to it? He isn't Tony.)