i think that Dean Winchester used to smoke in his teenage years(or when Sam left 'em and went to Stanford). he quit it when john saw him smoking and beat the crap outta him. since then he has a big trigger on smoking(especially on its smell). Sam once came with the smell of cigarettes which made Dean furious so he just left their hotel room for a whole night, cause of this strong, astringent smell
More men need to be silly. That's my type is silly men. And with so little silly men and so little gays in my area I'm practically doomed. So to save a life, be a silly man, or convince you local man to be silly.
And if you're on the masc-neutral spectrum,I highly encourage you to also be silly.