I remember one time I went into Auto Zone looking around. Well there were two men standing at the counter casually talking but one of the guys was cussing like crazy. Not in an angry way but just in his normal speech.
I mean it was gd this and gd that and mf this and mf that until finally the manager walks over to the guy and says "Excuse me but will you please refrain from cussing in here? This is a family store and its not appropriate to cuss like that." The man was like

So he refrained from cussing any more then soon left the store.. i was totally shocked..