Gary-Owens-Voice (GOV) guy comes onscreen,
whipping out his lower-case "i" from a briefcase and
he has a dialogue with a Rude Off-screen Voice (ROV):

GOV: Hi-ho everyone, I bet you don't know what this is.

ROV: It looks like a small L with a ball on top.

GOV: Well, golly-gee, I never thought of it,
but it does look something like an L with a ball on top.

ROV: Not something like, exactly like! You have the mind of a flea!

GOV: Quiet down now. This is the letter I.
Many words start with the letter I.

ROV: (rudely mocking him) "Many words start with the letter I!"

GOV: And the one that springs to my mind is -- "Impolite."
Now we don't want to be impolite.
(pause.) That means being rude, or discourteous, or having no manners.

ROV: (smart-alecky): Tell us all about it, bright boy!

GOV: Excuse me. (He walks off-stage; there comes several
seconds of a loud scuffle,
the suitcase bounces around.
The GOV guy returns.) Try not to be impolite. And thank you for your time.