Thing I hate most about my/all A-bodies

Every time, and I mean every time I take my '72 340 original Duster out for a drive some know it all wants to one up me with " I had one just like that, but it had a Hemi in it." Like he doesn't realize I rebuilt, and have owned this car since my father sold it to me in '80, that the 340 was the biggest engine you could get in one. Had a guy actually argue with me the one time I did correct him. And he swore it was factory. And I still get "Hey, that thing got a six pack?" Now I just reply "Yeah." What the hell.