Don't get me wrong. If I'm dealing with a vendor, I will almost always be "Canadian polite". Engage them with some conversation and with a polite smile with a "no thank you" or "no thank mon, .....respect". That goes for beach vendors like Sandy near Rooms or Rasta Herb, who BTW, I hear no longer has his building next to Rooms

The a-hole guy that I've dealt with in the past and misrepresents a certain product in a effort to rip me off (feed his family) gets a blunt "NO" end of story. For that I don't appologize.