I'm from DR and travel there quite often. I do agree with you that the airport workers will try anything to get an extra couple of bucks out of you, but I feel that since they don't get paid much to do the job they're doing they'll try and make a few more dollars off of the tourists (and non-tourists because they pull that on Dominicans as well). I'm not trying to excuse their actions but I think that's why they do it. However, just because they try these things doesnt mean we have to give them the $$. Like lucy106 said - just say no thanks and keep going when they try and help with your bag. As far as the overweight luggage goes, I try to put my own luggage on the scale to avoid any of their tricks and if my luggage is overweight, I always carry bags in case I need to move stuff out of my suitcase and just carry that bag on the plane with me or I'll move stuff into my carry-on.