Speaking captain?

[Kansas Ref]

When I am the "R", after I give my 1 min. 30 seconds "pregame speech", I do not ever ask the "U" if they have anything to add.
I learned to not solicit the input of the "U" the hard-way several seasons ago, when I used to [out of politeness] ask the U--"do you have anything to add?" Man, this "U" went on and on--saying: "we don't like to blow the whistle anymore than you like to hear it ; please be fair and honest if we officials happen to not see who the ball when OOB on ...blah, blah, blah". This U went on for a good 3 minutes. It was back then that I swore to Never solicit the "U" again--heck some guys who are "U" don't want to have to say a word at all--they figure "well, the Assignor made you the R for a reason, right; it's not my job."