Bad, good, vulgar, non vulgar might actually come down to perception but when it comes down to society and culture(sanskriti/sanskar), social norms, boundaries and values, then there is definitely a solid line that defines vulgarity. In this question I mostly address the vocal form of this vulgarity, i.e. using non-social, rough/vulgar words.
I strictly follow rules to avoid such arrogance but in this mass population and your day to day life, it's hard to come across people who don't make use of such words/statements. I really get confused when someone pronounces such thing. Should I slap the person infront of me or just ignore it? Request him not to speak them?
So, I turn to vedic texts/scriptures to find a mantra, a story, a sloka? Is there a story depicting such an instance of event? Or a sloka, a remedy of ancient source to deal with the situation?
EDIT: If this all seems a bit confusing, I think all I am trying to find out is how do the vedas/scriptures define vulgarism in terms of speech, act, vision and various other forms of perception and convey.