I saw somewhere in comments someone saying "We wouldn't like Sam and Dean so much if they were the kind of people who said 'sir' and 'ma'am' all the time." And I didn't do it, but I really wanted to say, 'hey, remember S1? where they called their father 'sir'? and used 'sir' and 'ma'am' for a lot of older people, at least? I did like that Sam and Dean!" I mean, John sure didn't put up with disrespect toward him, and I'm guessing he expected them to show the same kind of respect to his peers.

But I was too busy rolling my eyes and spluttering to type.