Watch Your Tongue
Before Tony and Steve Roger’s feud came to a head in Civil War, we had beautiful scenes of the two bickering and fighting in Age of Ultron. What you want to say about the least entertaining MCU movie is totally fine, but you can’t ignore how hysterical Tony’s explosive expletive was in the heat of battle.
And who other than Captain America to reprimand Iron Man for using such foul language? From there on out, everyone in the movie would tell Tony off for using expletives. The utter shock on Tony’s face after processing how offended an aged man could be about foul language really tickled our funny bones.