I'm gonna chime in and make a statement here...

Maybe instead of responding to an immature/frustrated person calling someone an ass by taking on the role of the strict school teacher, let's assume the role of a mentor... "FO: He was being an Ass" | "CA: *look funny at FO* Where did that come from? -or- Get enough sleep last night?". Find out what was going on, if the guy had just gotten off his phone with his wife who just told him she wanted a divorce wouldn't you be a little ****y and thing everyone is an ass too?

Since you are the captain it is required that you act like one, and don't do that by taking on the role of the lazy instructor by giving the guy a generic copy of the AIM, challenge him on his phrasing to ATC and if he argues about it I'd tell him: "Well, let's finish this discussion when we cruise it out... I got a copy of the AIM in my flight bag that can figure out who's buying beer on the next overnight".

I don't know... just my two cents on the approach to these sorts of situations.