This will likely offend someone.  As much as I would hate having a bunch of loud, rude, socioeconomically different foreigners coming to my town in a giant group, clogging my streets, taking pictures of stupid landmarks, waving money in my face, and leaving their garbage and tracks all over the place, I don't think it warrants the pushy annoyingness exhibited by Caribbean natives.  When I say I don't want to buy your jewelry, and I don't want a taxi ride, and I don't want a tour, I mean it.  One guy in Barbados, after I said "no thanks" to his offer of a bike taxi tour, got in my face and angrily assured me his spiel would merely take a minute of my time.  Maybe I'm used to cold, harsh cities like New York, where you have to go out of your way to get somebody to notice you.  Or maybe I'm right in thinking that "no thanks" is the internationally agreed-upon code for "no thanks."  I realize that many of these islands' economies thrive on tourism, and that the locals wouldn't offer these products and services if they didn't work at least some of the time.  Either way, the best way to completely convince a person like me to thoroughly reject whatever offers you throw my way is to get all up in my face and be annoying.  You could offer me a million bucks and my own private island, I'll still say no. #travel