Also known as that really awkward story when Bucky’s Grampy met Tony Stark’s great-great-grandfather and there were serious misunderstandings involved…

Grampy:  In my defense…

Bucky:  No, you have absolutely NO defense for this.  You were being an asshole.  And you know it. 

Grampy:  But — but —

Bucky:  I will sic Steve on you and you will not like it, my hand to God.

Grampy:  NO! NOT STEVE!

Bucky:  Then shaddup and just apologize to Stark Jr.  Or Steve will happen to you. 

Grampy:  ** sulks **

Apparently, Grampy has a fear of Steve Rogers?  Who knew?