Failure to Communicate

COL: The Hal Leonard one is not the Mark Rogers one.
Me: This is the Mark Rogers, and it says Hal Leonard.
COL: No.
Me: See? *pointing* Mark Rogers, Hal Leonard.
COL: *pause* Is that the set we used?
Me: This is the only Rogers we have.
COL: The Hal Leonard is by someone else.
Me: This is the Hal Leonard *pointing*, and it's by Mark Rogers *pointing*.
COL: *pause* That's not the Hal Leonard.
Me: It says Hal Leonard.
COL: I mean it's not the Rogers.
Me: It says Mark Rogers.
COL: *pause* Well...the Hal Leonard one is not the Mark Rogers one.
(repeat ad nauseam)