with all due respect

Note to Self:

You are most likely to use "with all due respect" when, in fact, you no longer have any respect for whom you are talking.  It's sort-of a nice way of saying, "Eff what you have to say. You will listen to me regardless of what you think."  Might as well change it to, "with no due respect" or perhaps "just shut up and listen to me."  Or you could try being a better listener and actually give them the respect they are due.

Sincerely:
John